Numbers k such that the k-th prime is of the form m^2 + (m+1)^2.

Terms

a(0) =3a(1) =6a(2) =13a(3) =18a(4) =30a(5) =42a(6) =65a(7) =82a(8) =112a(9) =135a(10) =170a(11) =197a(12) =212a(13) =271a(14) =284a(15) =319a(16) =353a(17) =369a(18) =445a(19) =505a(20) =612a(21) =682a(22) =933a(23) =1069a(24) =1193a(25) =1226a(26) =1286a(27) =1510a(28) =1609a(29) =1676