Sequence (a(n): n >= 1) that shifts left 2 places under the "CIK" (necklace, indistinct, unlabeled) transform and satisfies a(1) = a(2) = 1.

A032202

Sequence (a(n): n >= 1) that shifts left 2 places under the "CIK" (necklace, indistinct, unlabeled) transform and satisfies a(1) = a(2) = 1.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =6a(6) =10a(7) =22a(8) =41a(9) =92a(10) =193a(11) =435a(12) =963a(13) =2215a(14) =5051a(15) =11754a(16) =27375a(17) =64381a(18) =151898a(19) =360661a(20) =859149a(21) =2055804a(22) =4934428a(23) =11883930a(24) =28699336a(25) =69497354a(26) =168691424a(27) =410399073a(28) =1000486306a(29) =2443761830

External references