G.f. satisfies: 15*A(x) = 14 + 27*x + A(x)^6, starting with [1,3,15].

A120601

G.f. satisfies: 15*A(x) = 14 + 27*x + A(x)^6, starting with [1,3,15].

Terms

    a(0) =1a(1) =3a(2) =15a(3) =210a(4) =3510a(5) =65562a(6) =1310901a(7) =27446760a(8) =594104940a(9) =13187589690a(10) =298555767279

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