G.f. A(x) satisfies: A(x) = 1 + Sum_{k>=1} k*x^k*A(x)^k/(1 + x^k*A(x)^k).
A307401
G.f. A(x) satisfies: A(x) = 1 + Sum_{k>=1} k*x^k*A(x)^k/(1 + x^k*A(x)^k).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =8a(4) =26a(5) =92a(6) =360a(7) =1416a(8) =5698a(9) =23513a(10) =98346a(11) =416418a(12) =1783144a(13) =7704322a(14) =33546344a(15) =147071592a(16) =648636050a(17) =2875822121a(18) =12810531924a(19) =57306505152a(20) =257330920910
External references
- oeis: A307401