112720

Appears in sequences

• Number of rooted planar trees with n non-root nodes: circularly cycling the subtrees at the root gives equivalent trees.at n=12A003239
• Number of necklaces with 12 black beads and n-12 white beads.at n=12A032197
• Number of elements in the mutation class of a quiver of type D_n.at n=9A159557
• Expansion of (theta_3(z)*theta_3(23z) + theta_2(z)*theta_2(23z))^5.at n=29A328093