Where t(n) is the n-th Pentanacci number as defined by:
a(0)=1, a(1)=1, a(2)=1, a(3)=1, a(4)=1, a(n)=a(n-1)+a(n-2)+a(n-3)+a(n-4)+a(n-5)

t(178863)=2271175024 ... 8161918401
t(166683)=4449715033 ... 0449041217
t(117145)=4728225860 ... 2125724001
t(108844)=5405962579 ... 1760125953

Verified PRP by pfgw.

To be completed...