81071

Properties

Appears in sequences

• Boustrophedon transform of the signed Jacobsthal numbers.at n=10A101474
• Number of 5-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero and first differences in -n..n.at n=20A208996
• Number of vertices in a complete bipartite graph where the n vertices of each part are placed on the vertices, and on opposite sides, of a regular 2n-gon.at n=24A392971
• Prime numbersat n=7936