Number of cubic residues mod 8^n.

Terms

a(0) =1a(1) =5a(2) =37a(3) =293a(4) =2341a(5) =18725a(6) =149797a(7) =1198373a(8) =9586981a(9) =76695845a(10) =613566757a(11) =4908534053a(12) =39268272421a(13) =314146179365