Coefficient of x in the reduction by x^2 -> x+2 of the polynomial p(n,x) defined below in Comments.

A192382

Coefficient of x in the reduction by x^2 -> x+2 of the polynomial p(n,x) defined below in Comments.

Terms

    a(0) =0a(1) =2a(2) =4a(3) =24a(4) =80a(5) =352a(6) =1344a(7) =5504a(8) =21760a(9) =87552a(10) =349184a(11) =1398784a(12) =5591040a(13) =22372352a(14) =89473024a(15) =357924864a(16) =1431633920a(17) =5726666752a(18) =22906404864a(19) =91626143744a(20) =366503526400

External references