Increment difference between cells - excel

Question

I'm trying to duplicate data in a sheet with increments of 12 between each cell from a sheet with 1 cell per row. Between the 12-incremented rows there's other data. This means I can't drag to extend the formula. Like this for customer numbers:
'SheetA'E3 = 'SheetB'Y2
'SheetA'E15 = 'SheetB'Y3
'SheetA'E27 = 'SheetB'Y4
..and so on. I've tried extending 12/24 cells at a time and copying but I can't make it work. Extending doesn't add +1 to one sheet, just +12/+24 to both. Doing this manually will take months. Can this be done without a VBA solution?
Any suggestions? I'm sorry if my terminology isn't on point here.
SheetA:

Answer 1

Try this (run as VBA code):
Sub test1()
For i01 = 0 To 100
Worksheets("SheetA").Cells(3 + 12 * i01, 5) = Worksheets("SheetB").Cells(2 + i01, 25)
Next i01
End Sub

Answer 2

Power Query, available in Windows Excel 2010+ and Office 365, can produce your SheetA given SheetB. Not sure about the effect of the variability you mention.
The query assumes that the correct parameters are listed as column headers in Sheet B. The column headers will get copied over as parameters to sheet A.
To use Power Query:
Select some cell in your Data Table
Data => Get&Transform => from Table/Range
When the PQ Editor opens: Home => Advanced Editor
Make note of the Table Name in Line 2
Paste the M Code below in place of what you see
Change the Table name in line 2 back to what was generated originally.
Read the comments and explore the Applied Steps to understand the algorithm
M Code
let
//Read in the data
//Change table name in next line to be the "real" table name
Source = Excel.CurrentWorkbook(){[Name="Table12"]}[Content],
//set data types based on first entry in the column
//will be independent of the column names
typeIt = Table.TransformColumnTypes(Source,
List.Transform(
Table.ColumnNames(Source), each
{_,Value.Type(Table.Column(Source,_){0})})
),
//UNpivot except for the c.number and c.name columns to create the Parameter and Level columns
#"Unpivoted Other Columns" = Table.UnpivotOtherColumns(typeIt, {"C. number", "C. name"}, "Parameter", "Level"),
//Group By C.Number
//Add the appropriate rows for each customer
//And a blank row to separate the customers
#"Grouped Rows" = Table.Group(#"Unpivoted Other Columns", {"C. number"}, {
{"All", each _, type table [C. number=nullable number, C. name=nullable text, Parameter=text, Level=any]},
{"custLabel", (t)=> Table.InsertRows(t,0,{
[C. number = null, C. name=null,Parameter = null, Level = null],
[C. number = null, C. name=null, Parameter = "Customer Number", Level="Customer Name"],
[C. number = null, C. name=null,Parameter = t[C. number]{0}, Level = t[C. name]{0}],
[C. number = null, C. name=null,Parameter = "Parameter", Level = "Level"]
})}
}),
//Remove the unneeded columns and expand the remaining table
#"Removed Columns" = Table.RemoveColumns(#"Grouped Rows",{"C. number", "All"}),
#"Expanded custLabel" = Table.ExpandTableColumn(#"Removed Columns", "custLabel", {"Parameter", "Level"}, {"Parameter", "Level"}),
//Remove the top blank row
//promote the new blank row to the Header location
#"Removed Top Rows" = Table.Skip(#"Expanded custLabel",1),
#"Promoted Headers" = Table.PromoteHeaders(#"Removed Top Rows", [PromoteAllScalars=true]),
//data type set to text since it will look better on the report
#"Changed Type" = Table.TransformColumnTypes(#"Promoted Headers",{{"Customer Number", type text}, {"Customer Name", type text}})
in
#"Changed Type"```
Data
Results

Answer 3

[ Indirect with row() ]
Assuming 'SheetA'E3 column is the target and 'SheetB'Y2 is the source data.
In SheetA!E3 cell put:
=INDIRECT("SheetB!Y"&( ( (row()-3) / 12) + 2)
Press Enter
Then select SheetA!E3 cell, copy. Then paste in SheetA!E24. The formula will update itself.
Idea :
Find the relation between the target cell row number and the source cell row number. [ b > a : 3 > 2 , 15 > 3, 27 > 4 ] leads to a = (b-3)/12 + 2 . (The math is sort of like figuring out a straight line equation from 3 coordinate.) Then use INDIRECT() to combine the calculated row number with the column address.