a(2*n+2) = 8*a(2*n+1), a(2*n+1) = 8*a(2*n) - 7^n*A000108(n), a(0)=1.
A156362
a(2*n+2) = 8*a(2*n+1), a(2*n+1) = 8*a(2*n) - 7^n*A000108(n), a(0)=1.
Terms
- a(0) =1a(1) =7a(2) =56a(3) =441a(4) =3528a(5) =28126a(6) =225008a(7) =1798349a(8) =14386792a(9) =115060722a(10) =920485776a(11) =7363180314a(12) =58905442512a(13) =471228010428
External references
- oeis: A156362