a(n) = 4802*n^2 + 196*n + 1.

Terms

a(0) =4999a(1) =19601a(2) =43807a(3) =77617a(4) =121031a(5) =174049a(6) =236671a(7) =308897a(8) =390727a(9) =482161a(10) =583199a(11) =693841a(12) =814087a(13) =943937a(14) =1083391a(15) =1232449a(16) =1391111a(17) =1559377a(18) =1737247a(19) =1924721a(20) =2121799a(21) =2328481a(22) =2544767a(23) =2770657a(24) =3006151a(25) =3251249a(26) =3505951