An inverse Chebyshev transform of x^3.

Terms

a(0) =0a(1) =1a(2) =4a(3) =14a(4) =48a(5) =165a(6) =572a(7) =2002a(8) =7072a(9) =25194a(10) =90440a(11) =326876a(12) =1188640a(13) =4345965a(14) =15967980a(15) =58929450a(16) =218349120a(17) =811985790a(18) =3029594040a(19) =11338026180a(20) =42550029600a(21) =160094486370a(22) =603784920024