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

Terms

a(0) =0a(1) =4a(2) =18a(3) =46a(4) =86a(5) =138a(6) =210a(7) =292a(8) =396a(9) =512a(10) =630a(11) =790a(12) =968a(13) =1150a(14) =1380a(15) =1566a(16) =1820a(17) =2082a(18) =2370a(19) =2670a(20) =3010a(21) =3382a(22) =3720a(23) =4122a(24) =4540a(25) =4950a(26) =5416a(27) =5900a(28) =6372a(29) =6884