Expansion of 1/(1 - 22*x + 81*x^2), used in A246643.

A246645

Expansion of 1/(1 - 22*x + 81*x^2), used in A246643.

Terms

    a(0) =1a(1) =22a(2) =403a(3) =7084a(4) =123205a(5) =2136706a(6) =37027927a(7) =641541208a(8) =11114644489a(9) =192557340910

External references