Numbers k such that prime(k+1) == 5 (mod k).

Terms

a(0) =1a(1) =2a(2) =6a(3) =7a(4) =12a(5) =14a(6) =181a(7) =1053a(8) =1057a(9) =2614a(10) =40089a(11) =40114a(12) =40117a(13) =40119a(14) =100346a(15) =100352a(16) =100358a(17) =251707a(18) =251742a(19) =251743a(20) =251754a(21) =251757a(22) =1617173a(23) =4124458a(24) =10553513a(25) =27067262a(26) =27067272a(27) =179992922a(28) =179992932a(29) =179993012