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

A192357

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

Terms

    a(0) =1a(1) =0a(2) =10a(3) =1a(4) =137a(5) =93a(6) =2219a(7) =3410a(8) =39586a(9) =94467a(10) =750823a(11) =2317249a(12) =14833565a(13) =53482716a(14) =301162922a(15) =1194377453a(16) =6225350029a(17) =26179063845a(18) =130188268471a(19) =567580989502

External references