G.f. satisfies: A(x) = Sum_{n>=0} x^n / ( (1+x)^(n+1) * (1 - (n+1)*x*A(x)) ).
A245378
G.f. satisfies: A(x) = Sum_{n>=0} x^n / ( (1+x)^(n+1) * (1 - (n+1)*x*A(x)) ).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =10a(4) =39a(5) =165a(6) =743a(7) =3507a(8) =17199a(9) =87126a(10) =454159a(11) =2430031a(12) =13326623a(13) =74856230a(14) =430628069a(15) =2538270783a(16) =15343363603a(17) =95233568052a(18) =607850790015
External references
- oeis: A245378