Composite numbers n such that k! == 1 (mod n) for some k > 2.

Terms

a(0) =119a(1) =121a(2) =221a(3) =299a(4) =391a(5) =527a(6) =901a(7) =961a(8) =1387a(9) =1643a(10) =1829a(11) =2047a(12) =2627a(13) =3569a(14) =5083a(15) =9641a(16) =9869a(17) =10379a(18) =11449a(19) =16337a(20) =16517a(21) =18349a(22) =22577a(23) =23267a(24) =23999a(25) =25199a(26) =27931a(27) =28471a(28) =31877a(29) =32989