Transpose range into table

Hi,

The task, In the attached WB, is to transpose the range A1:A15 unto a two-dimensional range.

I know how to implement this with INDIRECT or OFFSET.
+++ Didn't try INDEX yet +++

My question is: what formula can be used that will be suitable - no matter which upper-left cell I choose.

I assume that the basic indicators for such a formula will be the Row & COLUMN of where it resides.

for example: J3, J19, H15 and D20 should return 1 while all using the SAME formula.

Please note the difference layout of the green and gray tables.

I would appreciate a formula for both layouts.
+++ I assume the formulas will be different for each layout +++

Is there a chance to build such a formula ?

Thanks, Elm

In D3 copied across the table:
=INDEX($A:$A,(ROW(A1)+((COLUMN(A1)-1)*3)))

In D10 copied across the table:
=INDEX($A:$A,((ROW(A1)-1)*5)+(COLUMN(A1)))