Numbers k such that k^2+1, (k+2)^2+1 and (k+6)^2+1 are prime.

Terms

a(0) =4a(1) =14a(2) =124a(3) =204a(4) =464a(5) =1144a(6) =1314a(7) =1564a(8) =1964a(9) =2454a(10) =3134a(11) =4174a(12) =4364a(13) =5584a(14) =5874a(15) =6234a(16) =7804a(17) =8174a(18) =8784a(19) =9874a(20) =9894a(21) =10424a(22) =12354a(23) =12484a(24) =12874a(25) =14034a(26) =14194a(27) =15674a(28) =16224a(29) =18274