Coefficient of x in the reduction of the polynomial p(n,x) defined at A162517 and below in Comments.

A192374

Coefficient of x in the reduction of the polynomial p(n,x) defined at A162517 and below in Comments.

Terms

    a(0) =0a(1) =2a(2) =4a(3) =28a(4) =84a(5) =406a(6) =1448a(7) =6200a(8) =23688a(9) =97034a(10) =380716a(11) =1533844a(12) =6079452a(13) =24339742a(14) =96844496a(15) =386805104a(16) =1541301648a(17) =6150529682a(18) =24521644756a(19) =97819530508a(20) =390080615652

External references