Coefficients of x in the reduction of the polynomial p(n,x)=(1/2)((x+3)^n+(x-3)^n) by x^2->x+1.

A192358

Coefficients of x in the reduction of the polynomial p(n,x)=(1/2)((x+3)^n+(x-3)^n) by x^2->x+1.

Terms

    a(0) =0a(1) =1a(2) =1a(3) =29a(4) =57a(5) =590a(6) =1628a(7) =11731a(8) =39459a(9) =236797a(10) =899155a(11) =4863068a(12) =19903896a(13) =101199149a(14) =433857437a(15) =2124952045a(16) =9374498133a(17) =44879983186a(18) =201514230964a(19) =951385817327

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