Numbers k such that k^2+1 and (k+2)^2+1 are both prime; twin k^2+1 primes.

Terms

a(0) =2a(1) =4a(2) =14a(3) =24a(4) =54a(5) =124a(6) =204a(7) =384a(8) =464a(9) =634a(10) =644a(11) =714a(12) =1094a(13) =1144a(14) =1174a(15) =1244a(16) =1274a(17) =1314a(18) =1374a(19) =1564a(20) =1614a(21) =1674a(22) =1684a(23) =1964a(24) =2054a(25) =2084a(26) =2094a(27) =2404a(28) =2454a(29) =2534