Acquisition Schedule Formula

I have a row in my life cycle cost estimate (20 year projection) that needs to follow the following command:

It should be zeroed out every year, except on acquisition years, and every 5th years. Essentially, I would like it so when I change the acquisition years, it will follow the above command.

for example: (3 year acquisition cycle)

FY1  FY2  FY3  FY4  FY5  FY6  FY7  FY8  FY9  FY10  FY11
100    0    0  100    0  100  100    0    0   100   100

*If i changed the acquisition cycle to 4 years, it would follow:

FY1  FY2  FY3  FY4  FY5  FY6  FY7  FY8  FY9  FY10  FY11
100    0    0    0  100  100    0    0  100     0   100

I would give a dummy book, but I don't even know where to go with this formula...

Any help would be much appreciated!

Here's one way:

       --A-- -B- -C- ------------------------------------D-------------------------------------
   1   value 100 100                                                                           
   2   cycle   3   4                                                                           
   3                                                                                           
   4    FY                                                                                     
   5       1 100 100 B5 and across and down: =IF(OR(MOD($A5, 5) = 1, MOD($A5, B$2) =1), B$1, 0)
   6       2   0   0                                                                           
   7       3   0   0                                                                           
   8       4 100   0                                                                           
   9       5   0 100                                                                           
  10       6 100 100                                                                           
  11       7 100   0                                                                           
  12       8   0   0                                                                           
  13       9   0 100                                                                           
  14      10 100   0                                                                           
  15      11 100 100                                                                           
  16      12   0   0                                                                           
  17      13 100 100                                                                           
  18      14   0   0

My attempt.

Cheers,