Consider the Post tag system defined in A284116; a(n) = number of binary words of length n which terminate in a cycle.

A289671

Consider the Post tag system defined in A284116; a(n) = number of binary words of length n which terminate in a cycle.

Terms

    a(0) =0a(1) =2a(2) =4a(3) =8a(4) =16a(5) =48a(6) =64a(7) =128a(8) =320a(9) =704a(10) =1536a(11) =3328a(12) =5632a(13) =9728a(14) =20480a(15) =44032a(16) =94208a(17) =180224a(18) =348160a(19) =720896a(20) =1458176a(21) =2801664a(22) =6062080a(23) =12582912a(24) =23986176a(25) =49807360a(26) =103809024a(27) =202899456a(28) =415760384a(29) =853540864

External references