Number of n-bead necklaces labeled with numbers 1..6 not allowing reversal, with no adjacent beads differing by more than 1.

A208775

Number of n-bead necklaces labeled with numbers 1..6 not allowing reversal, with no adjacent beads differing by more than 1.

Terms

    a(0) =6a(1) =11a(2) =16a(3) =30a(4) =52a(5) =117a(6) =242a(7) =577a(8) =1360a(9) =3347a(10) =8278a(11) =20978a(12) =53346a(13) =137422a(14) =355978a(15) =928731a(16) =2434580a(17) =6414014a(18) =16961468a(19) =45017417a(20) =119840582a(21) =319916277a(22) =856089572a(23) =2295950281a(24) =6169664562a(25) =16608996492a(26) =44785220118a(27) =120942143132a(28) =327053057574a(29) =885545659155

External references