Where t(n) is the n-th Hexanacci number as defined by:
a(0)=0, a(1)=0, a(2)=0, a(3)=0, a(4)=0, a(5)=1, a(n)=a(n-1)+a(n-2)+a(n-3)+a(n-4)+a(n-5)+a(n-6)

t(97152)=1336538758 ... 3138459501


Verified PRP by pfgw.

To be completed...