Expansion of 1/(g * (2-g))^2, where g = 1+x*g^4 is the g.f. of A002293.
A391220
Expansion of 1/(g * (2-g))^2, where g = 1+x*g^4 is the g.f. of A002293.
Terms
- a(0) =1a(1) =0a(2) =2a(3) =16a(4) =123a(5) =960a(6) =7640a(7) =61872a(8) =508529a(9) =4231936a(10) =35590392a(11) =302015040a(12) =2582784897a(13) =22236918336a(14) =192587900648
External references
- oeis: A391220