197820

Appears in sequences

• Number of 3-edge-colored trivalent graphs with 2n labeled nodes.at n=2A006712
• Numbers k such that both k and k^2 are sums of a twin prime pair.at n=28A213784
• Erroneous version of A006712.at n=2A248361
• a(n) = number of triangles that can be formed from the points of a 3 X n grid.at n=36A262402
• Numbers k such that 333*2^k+1 is prime.at n=35A322959