a(n) = 13122*n^2 + 324*n + 1.

Terms

a(0) =13447a(1) =53137a(2) =119071a(3) =211249a(4) =329671a(5) =474337a(6) =645247a(7) =842401a(8) =1065799a(9) =1315441a(10) =1591327a(11) =1893457a(12) =2221831a(13) =2576449a(14) =2957311a(15) =3364417a(16) =3797767a(17) =4257361a(18) =4743199a(19) =5255281a(20) =5793607a(21) =6358177a(22) =6948991a(23) =7566049a(24) =8209351a(25) =8878897