Number of cycles for the map LL:x->x^2-2 acting on Z/(2^n-1).

Terms

a(0) =2a(1) =1a(2) =1a(3) =2a(4) =2a(5) =4a(6) =6a(7) =8a(8) =6a(9) =8a(10) =14a(11) =25a(12) =36a(13) =180a(14) =76a(15) =80a(16) =66a(17) =2068a(18) =354a(19) =7316a(20) =740a(21) =1776a(22) =2198a(23) =264a(24) =792a(25) =3278a(26) =122396a(27) =848a(28) =17312a(29) =27743