E.g.f. A(x)=exp(x^6+3*x^5+4*x^4+3*x^3+2*x^2+x).

A186859

E.g.f. A(x)=exp(x^6+3*x^5+4*x^4+3*x^3+2*x^2+x).

Terms

    a(0) =1a(1) =1a(2) =5a(3) =31a(4) =241a(5) =2021a(6) =19741a(7) =224155a(8) =2816801a(9) =38127241a(10) =557512021a(11) =8805585911a(12) =148896471505

External references