G.f.: A(x) = A_1 where A_1 = 1/[1 - x*(A_2)^3], A_2 = 1/[1 - x^2*(A_3)^3], A_3 = 1/[1 - x^3*(A_4)^3], ... A_n = 1/[1 - x^n*(A_{n+1})^3] for n>=1.
A132334
G.f.: A(x) = A_1 where A_1 = 1/[1 - x*(A_2)^3], A_2 = 1/[1 - x^2*(A_3)^3], A_3 = 1/[1 - x^3*(A_4)^3], ... A_n = 1/[1 - x^n*(A_{n+1})^3] for n>=1.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =4a(4) =7a(5) =16a(6) =43a(7) =89a(8) =216a(9) =502a(10) =1154a(11) =2715a(12) =6268a(13) =14583a(14) =33936a(15) =78787a(16) =183141a(17) =425547a(18) =988765a(19) =2297533a(20) =5338321a(21) =12403697a(22) =28819646a(23) =66962219a(24) =155583912a(25) =361492693a(26) =839915741a(27) =1951499287a(28) =4534218339a(29) =10535031491
External references
- oeis: A132334