E.g.f.: exp(Sum_{k>=1} A326305(k) * x^k/k).

Terms

a(0) =1a(1) =1a(2) =1a(3) =5a(4) =23a(5) =167a(6) =907a(7) =8647a(8) =84625a(9) =840401a(10) =8917289a(11) =122748749a(12) =1753750759a(13) =26047588855a(14) =401961006787