Binomial coefficient C(31,n).

Terms

a(0) =1a(1) =31a(2) =465a(3) =4495a(4) =31465a(5) =169911a(6) =736281a(7) =2629575a(8) =7888725a(9) =20160075a(10) =44352165a(11) =84672315a(12) =141120525a(13) =206253075a(14) =265182525a(15) =300540195a(16) =300540195a(17) =265182525a(18) =206253075a(19) =141120525a(20) =84672315a(21) =44352165a(22) =20160075a(23) =7888725a(24) =2629575a(25) =736281a(26) =169911a(27) =31465a(28) =4495a(29) =465