a(n) = prime(n^2) - n^2.

Terms

a(0) =1a(1) =3a(2) =14a(3) =37a(4) =72a(5) =115a(6) =178a(7) =247a(8) =338a(9) =441a(10) =540a(11) =683a(12) =840a(13) =997a(14) =1202a(15) =1363a(16) =1590a(17) =1819a(18) =2076a(19) =2341a(20) =2642a(21) =2977a(22) =3274a(23) =3635a(24) =4012a(25) =4375a(26) =4790a(27) =5223a(28) =5640a(29) =6097