Compiled program segfaults
When I run the bug program, it correctly computes 28 values (output lines 1 through 28) and on the 29th, it segfaults.
For some reason this program runs out of stack space; however if you compile it with -rtsopts and increase the size of the stack, it will segfault on the 29th.
This program is fairly slow. Compiled with -O4, it took 3 minutes to segfault and used more than 20 GB of RAM.