a(n) = 373 + 1947*n + 3780*n^2 + 3234*n^3 + 1029*n^4.

Terms

a(0) =373a(1) =10363a(2) =61723a(3) =210901a(4) =539041a(5) =1151983a(6) =2180263a(7) =3779113a(8) =6128461a(9) =9432931a(10) =13921843a(11) =19849213a(12) =27493753a(13) =37158871a(14) =49172671a(15) =63887953a(16) =81682213a(17) =102957643a(18) =128141131a(19) =157684261a(20) =192063313a(21) =231779263a(22) =277357783a(23) =329349241