Even numbers k such that 6k+1, 12k+1, 18k+1, 36k+1 and 72k+1 are all primes.

Terms

a(0) =380a(1) =506a(2) =3796a(3) =6006a(4) =8976a(5) =9186a(6) =10920a(7) =12896a(8) =14476a(9) =14800a(10) =15386a(11) =32326a(12) =38460a(13) =39536a(14) =40420a(15) =41456a(16) =43430a(17) =60076a(18) =74676a(19) =76986a(20) =82530a(21) =87390a(22) =99486a(23) =107926a(24) =112840a(25) =126996a(26) =127920a(27) =144326a(28) =179566a(29) =181986