E.g.f. satisfies A(x) = 1/(1 - x*A(x))^(x^2).

A375826

E.g.f. satisfies A(x) = 1/(1 - x*A(x))^(x^2).

Terms

    a(0) =1a(1) =0a(2) =0a(3) =6a(4) =12a(5) =40a(6) =1260a(7) =11088a(8) =99120a(9) =1926720a(10) =32800320a(11) =535328640a(12) =11274642720a(13) =259872088320

External references