192700

Appears in sequences

• Number of bracelets (turnover necklaces) of n beads of 4 colors.at n=10A032275
• Coordination sequence for 8-dimensional cyclotomic lattice Z[zeta_20].at n=7A126901
• Consider necklaces with n beads, each black or white, where the n segments of cord between the beads are each colored red or green; a(n) is the number of different necklaces under the action of the dihedral group D_{2n}.at n=11A161221