Maximal cycle lengths in a certain class of one-dimensional cellular automata.

Terms

a(0) =6a(1) =2a(2) =8a(3) =6a(4) =26a(5) =4a(6) =18a(7) =8a(8) =242a(9) =6a(10) =26a(11) =26a(12) =24a(13) =16a(14) =1640a(15) =18a(16) =19682a(17) =16a(18) =78a(19) =242a(20) =177146a(21) =12a(22) =59048a(23) =26a(24) =54a(25) =26a(26) =4782968a(27) =24a(28) =1103762a(29) =160