Coefficient of x in the reduction of the n-th 2nd-kind Chebyshev polynomial by x^2 -> x+1.

A192236

Coefficient of x in the reduction of the n-th 2nd-kind Chebyshev polynomial by x^2 -> x+1.

Terms

    a(0) =2a(1) =4a(2) =12a(3) =36a(4) =102a(5) =296a(6) =856a(7) =2472a(8) =7146a(9) =20652a(10) =59684a(11) =172492a(12) =498510a(13) =1440720a(14) =4163760a(15) =12033488a(16) =34777426a(17) =100508628a(18) =290475324a(19) =839489268a(20) =2426169014a(21) =7011758584a(22) =20264358408a(23) =58565082744a(24) =169256230458a(25) =489159584636

External references