p-INVERT of the (4^n), where p(S) = 1 - S - S^2.

Terms

a(0) =1a(1) =6a(2) =35a(3) =201a(4) =1144a(5) =6477a(6) =36557a(7) =205950a(8) =1158967a(9) =6517653a(10) =36638504a(11) =205911129a(12) =1157068585a(13) =6501305814a(14) =36527449211a(15) =205222232433