G.f. A(x) satisfies A(x) = 1/( 1 - x * (1 + 9*x)^(1/3) * A(x)^2 ).
A372137
G.f. A(x) satisfies A(x) = 1/( 1 - x * (1 + 9*x)^(1/3) * A(x)^2 ).
Terms
- a(0) =1a(1) =1a(2) =6a(3) =21a(4) =181a(5) =771a(6) =7728a(7) =34689a(8) =385632a(9) =1732971a(10) =21041598a(11) =92147697a(12) =1217109951a(13) =5099210686a(14) =73380609681a(15) =289623783084
External references
- oeis: A372137