Numbers n such that n^2 + 1, n^2 + 3, n^2 + 7 and n^2 + 9 are all primes.

Terms

a(0) =2a(1) =10a(2) =1420a(3) =2080a(4) =2600a(5) =20500a(6) =22630a(7) =46960a(8) =65300a(9) =81610a(10) =153560a(11) =173590a(12) =187330a(13) =195290a(14) =238850a(15) =255230a(16) =301690a(17) =315410a(18) =316250a(19) =346580a(20) =395860a(21) =398710a(22) =439750a(23) =496220a(24) =498550a(25) =506360a(26) =555110a(27) =609400a(28) =618580a(29) =872950