Apéry numbers: n^3*C(2n,n).

Terms

a(0) =0a(1) =2a(2) =48a(3) =540a(4) =4480a(5) =31500a(6) =199584a(7) =1177176a(8) =6589440a(9) =35443980a(10) =184756000a(11) =938929992a(12) =4672781568a(13) =22850118200a(14) =110079950400a(15) =523521630000