Numbers k such that k^2 + {1,3,7,13,31} are prime.

Terms

a(0) =4a(1) =10a(2) =14290a(3) =43054a(4) =109456a(5) =315410a(6) =352600a(7) =483494a(8) =566296a(9) =685114a(10) =927070a(11) =1106116a(12) =1248796a(13) =1501174a(14) =1997986a(15) =2399204a(16) =2501404a(17) =2553100a(18) =2726840a(19) =2874680a(20) =3291760a(21) =4129394a(22) =4473766a(23) =4794520a(24) =4901144a(25) =6350306a(26) =7444070a(27) =7753456a(28) =7892504a(29) =8009536