An inverse Chebyshev transform of n^3.

Terms

a(0) =0a(1) =1a(2) =8a(3) =30a(4) =96a(5) =270a(6) =720a(7) =1820a(8) =4480a(9) =10710a(10) =25200a(11) =58212a(12) =133056a(13) =300300a(14) =672672a(15) =1492920a(16) =3294720a(17) =7220070a(18) =15752880a(19) =34179860a(20) =73902400a(21) =159074916a(22) =341429088a(23) =730122120a(24) =1557593856a(25) =3312591100a(26) =7030805600a(27) =14883258600a(28) =31451414400