a(n) = n*(n + 11)*(n + 22)*(n + 33)*(n + 44)/120.

Terms

a(0) =0a(1) =3519a(2) =8372a(3) =14805a(4) =23088a(5) =33516a(6) =46410a(7) =62118a(8) =81016a(9) =103509a(10) =130032a(11) =161051a(12) =197064a(13) =238602a(14) =286230a(15) =340548a(16) =402192a(17) =471835a(18) =550188a(19) =638001a(20) =736064a(21) =845208a(22) =966306a(23) =1100274a(24) =1248072a(25) =1410705a(26) =1589224a(27) =1784727a(28) =1998360a(29) =2231318