E.g.f.: C(x) + S(x) = exp( Integral C(x)^4 dx ) where C(x) and S(x) is described by A281428 and A281427, respectively.

A281429

E.g.f.: C(x) + S(x) = exp( Integral C(x)^4 dx ) where C(x) and S(x) is described by A281428 and A281427, respectively.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =5a(4) =17a(5) =145a(6) =865a(7) =10325a(8) =88865a(9) =1357825a(10) =15335425a(11) =284963525a(12) =3993275825a(13) =87274812625

External references