a(n) = n*(n + 11)*(n + 22)*(n + 33)/24.

Terms

a(0) =0a(1) =391a(2) =910a(3) =1575a(4) =2405a(5) =3420a(6) =4641a(7) =6090a(8) =7790a(9) =9765a(10) =12040a(11) =14641a(12) =17595a(13) =20930a(14) =24675a(15) =28860a(16) =33516a(17) =38675a(18) =44370a(19) =50635a(20) =57505a(21) =65016a(22) =73205a(23) =82110a(24) =91770a(25) =102225a(26) =113516a(27) =125685a(28) =138775a(29) =152830