G.f. satisfies: A(x) = Sum_{n>=0} x^n / (1 - (n+1)*x*A(x)).
A245389
G.f. satisfies: A(x) = Sum_{n>=0} x^n / (1 - (n+1)*x*A(x)).
Terms
- a(0) =1a(1) =2a(2) =6a(3) =23a(4) =102a(5) =496a(6) =2570a(7) =13959a(8) =78682a(9) =457243a(10) =2727360a(11) =16647048a(12) =103759186a(13) =659500772a(14) =4271197824a(15) =28175622291a(16) =189321228022
External references
- oeis: A245389