G.f. A(x) satisfies: A(x) = (1 - x*A(x)) * Sum_{n>=0} x^n*A(x)^n / (1 - x*A(x)^(n+1)).
A340892
G.f. A(x) satisfies: A(x) = (1 - x*A(x)) * Sum_{n>=0} x^n*A(x)^n / (1 - x*A(x)^(n+1)).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =22a(5) =90a(6) =394a(7) =1807a(8) =8577a(9) =41810a(10) =208218a(11) =1055418a(12) =5429926a(13) =28294906a(14) =149091449a(15) =793344134a(16) =4258741610a(17) =23043290306a(18) =125589061313a(19) =689061968319
External references
- oeis: A340892