Number of necklaces with n beads colored white or red, where the number of white beads is odd and at least three and turning over is allowed.

A263768

Number of necklaces with n beads colored white or red, where the number of white beads is odd and at least three and turning over is allowed.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =4a(4) =8a(5) =11a(6) =22a(7) =33a(8) =62a(9) =101a(10) =189a(11) =324a(12) =611a(13) =1087a(14) =2055a(15) =3770a(16) =7154a(17) =13363a(18) =25481a(19) =48174a(20) =92204a(21) =175791a(22) =337593a(23) =647325a(24) =1246862a(25) =2400841a(26) =4636389a(27) =8956059a(28) =17334800a(29) =33570815

External references