43249115

Appears in sequences

• Number of bracelets (turn over necklaces) with n beads: 1 blue, 12 green, and r = n - 13 red.at n=18A141783
• Maximum over 0 <= k <= n/2 of the number of permutations of two symbols occurring k and n-2*k times, respectively, where a permutation and its reversal are counted only once.at n=42A362260