87169619

Appears in sequences

• Asymmetric rhythm cycles (patterns): binary necklaces of length 2n subject to the restriction that for any k if the k-th bead is of color 1 then the (k+n)-th bead (modulo 2n) is of color 0.at n=19A115114
• Number of oriented circulant graphs of order n up to Cayley isomorphism.at n=40A283189