Expansion of g^3/(1 - x*g)^2, where g = 1+x*g^3 is the g.f. of A001764.
A391174
Expansion of g^3/(1 - x*g)^2, where g = 1+x*g^3 is the g.f. of A001764.
Terms
- a(0) =1a(1) =5a(2) =23a(3) =110a(4) =553a(5) =2901a(6) =15741a(7) =87711a(8) =499180a(9) =2889929a(10) =16967797a(11) =100801084a(12) =604817298a(13) =3660029145a(14) =22312616163a(15) =136904828226a(16) =844806252567
External references
- oeis: A391174