Expansion of g/(1 - x*g)^3, where g = 1+x*g^4 is the g.f. of A002293.

A391274

Expansion of g/(1 - x*g)^3, where g = 1+x*g^4 is the g.f. of A002293.

Terms

    a(0) =1a(1) =4a(2) =16a(3) =77a(4) =441a(5) =2851a(6) =19942a(7) =147025a(8) =1124864a(9) =8845247a(10) =71037036a(11) =580152257a(12) =4803192449a(13) =40220256606a(14) =340031788158

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