Positive integers k such that k divides 12^k - 1.

Terms

a(0) =1a(1) =11a(2) =121a(3) =253a(4) =1331a(5) =2783a(6) =5819a(7) =11891a(8) =14641a(9) =30613a(10) =64009a(11) =130801a(12) =133837a(13) =161051a(14) =273493a(15) =336743a(16) =558877a(17) =704099a(18) =768361a(19) =849299a(20) =1438811a(21) =1472207a(22) =1771561a(23) =3008423a(24) =3078251a(25) =3544453a(26) =3704173a(27) =6147647a(28) =6290339a(29) =7745089