Numbers n such that n, 2n+1, 3n+2, 4n+3 are primes.

Terms

a(0) =5a(1) =89a(2) =1409a(3) =1889a(4) =10589a(5) =11549a(6) =11909a(7) =12899a(8) =17159a(9) =19889a(10) =22349a(11) =24239a(12) =26189a(13) =35999a(14) =37049a(15) =37379a(16) =39419a(17) =44879a(18) =45569a(19) =49919a(20) =60779a(21) =67559a(22) =68669a(23) =75329a(24) =83579a(25) =88919a(26) =104369a(27) =108359a(28) =112349a(29) =114599