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

Terms

a(0) =1a(1) =11a(2) =43a(3) =99a(4) =179a(5) =287a(6) =423a(7) =591a(8) =791a(9) =1023a(10) =1289a(11) =1589a(12) =1935a(13) =2301a(14) =2731a(15) =3159a(16) =3641a(17) =4165a(18) =4749a(19) =5333a(20) =5975a(21) =6653a(22) =7403a(23) =8159a(24) =8927a(25) =9809a(26) =10739a(27) =11609a(28) =12659a(29) =13601