Numbers whose septenary, octal and nonary representations are prime when read in decimal.

Terms

a(0) =2a(1) =3a(2) =5a(3) =43a(4) =115a(5) =619a(6) =1249a(7) =1681a(8) =1711a(9) =2563a(10) =2635a(11) =5155a(12) =10321a(13) =10531a(14) =11539a(15) =13219a(16) =14479a(17) =17713a(18) =17755a(19) =18217a(20) =18889a(21) =20203a(22) =20905a(23) =26335a(24) =27163a(25) =29305a(26) =35353a(27) =39859a(28) =40867a(29) =40897