Coefficients of Chebyshev polynomials.

Terms

a(0) =2a(1) =11a(2) =36a(3) =91a(4) =196a(5) =378a(6) =672a(7) =1122a(8) =1782a(9) =2717a(10) =4004a(11) =5733a(12) =8008a(13) =10948a(14) =14688a(15) =19380a(16) =25194a(17) =32319a(18) =40964a(19) =51359a(20) =63756a(21) =78430a(22) =95680a(23) =115830a(24) =139230a(25) =166257a(26) =197316a(27) =232841a(28) =273296a(29) =319176