G.f. satisfies: A(x) = (1 - x^3*A(x)^6) / (1 - x*A(x)^2)^2.
A253256
G.f. satisfies: A(x) = (1 - x^3*A(x)^6) / (1 - x*A(x)^2)^2.
Terms
- a(0) =1a(1) =2a(2) =11a(3) =79a(4) =647a(5) =5727a(6) =53367a(7) =515802a(8) =5123303a(9) =51977485a(10) =536320688a(11) =5610909773a(12) =59379328267a(13) =634538481389
External references
- oeis: A253256