G.f. A(x) satisfies: A(x) = Sum_{n>=0} binomial( n*(n+1)/2, n) * x^n / A(x)^( n*(n+1)/2 ).
A298690
G.f. A(x) satisfies: A(x) = Sum_{n>=0} binomial( n*(n+1)/2, n) * x^n / A(x)^( n*(n+1)/2 ).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =10a(4) =83a(5) =971a(6) =14679a(7) =271065a(8) =5887674a(9) =146573343a(10) =4106195739a(11) =127709962780
External references
- oeis: A298690