L.g.f.: A(x) = log(G124890(x)) where G124890(x) is the g.f. of A124890.

A124891

L.g.f.: A(x) = log(G124890(x)) where G124890(x) is the g.f. of A124890.

Terms

    a(0) =1a(1) =5a(2) =25a(3) =137a(4) =766a(5) =4379a(6) =25355a(7) =148273a(8) =873574a(9) =5177450a(10) =30833342a(11) =184355207a(12) =1105977887a(13) =6653964847a(14) =40131748300a(15) =242567280865

External references