Least number m such that 12^m == +- 1 (mod 12n + 1).

Terms

a(0) =1a(1) =10a(2) =9a(3) =21a(4) =15a(5) =18a(6) =16a(7) =8a(8) =27a(9) =11a(10) =3a(11) =2a(12) =3a(13) =13a(14) =45a(15) =12a(16) =40a(17) =15a(18) =57a(19) =60a(20) =11a(21) =26a(22) =69a(23) =136a(24) =21a(25) =39a(26) =20a(27) =84a(28) =87a(29) =57