a(n) = 132*binomial(n,12).

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =0a(10) =0a(11) =0a(12) =132a(13) =1716a(14) =12012a(15) =60060a(16) =240240a(17) =816816a(18) =2450448a(19) =6651216a(20) =16628040a(21) =38798760a(22) =85357272a(23) =178474296a(24) =356948592a(25) =686439600a(26) =1274816400a(27) =2294669520a(28) =4015671660a(29) =6850263420