Every 5 groups of rows

well if B1 can have a new line within the cell when transfer content A1 - 5 that would be better... so looks like
"
1
11
111
1111
11111
"

what I am trying to do is to select groups of 5s without using my mouse to select them and counting 1, 2, 3, 4, 5.. if this works then I just need to select one cell.. thanks