92204

Appears in sequences

• Number of primitive n-bead necklaces (turning over is allowed) where complements are equivalent.at n=23A000046
• Consider a room of size r X s where rs = 2n and 1 <= r <= s; count ways to arrange n Tatami mats in room; a(n) = total number of ways for all choices of r and s. Two arrangements are considered the same if one is a rotation or reflection of the other.at n=31A052270
• Number of bracelet structures using exactly two different colored beads.at n=22A056357
• Number of primitive (period n) bracelet structures using exactly two different colored beads.at n=22A056366
• a(n) is the number of representative two-color bracelets (necklaces with turnover allowed) with n beads for n >= 2.at n=21A213942
• Number of 4Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=7A241400
• 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.at n=20A263768
• a(n) = (A259756(n)-1)/8.at n=8A275417
• Number of primitive n-bead necklaces (turning over is allowed) comprising elements of two flavors where complements and scalings are equivalent.at n=23A364468
• Number of palindromic periodicities among the binary words of length n.at n=20A374495