Numbers k such that k^2 + (k+1)^2 + (k+2)^2 is prime.

Terms

a(0) =0a(1) =2a(2) =6a(3) =12a(4) =14a(5) =24a(6) =34a(7) =52a(8) =56a(9) =62a(10) =66a(11) =76a(12) =86a(13) =94a(14) =96a(15) =122a(16) =124a(17) =132a(18) =152a(19) =154a(20) =164a(21) =182a(22) =184a(23) =194a(24) =206a(25) =216a(26) =226a(27) =244a(28) =252a(29) =254