56604

Appears in sequences

• a(n) = a(1)*a(n-1) + a(2)*a(n-2) + ...+ a(n-1)*a(1) for n >= 5, with initial values 1,1,2,1.at n=12A025271
• Multiplicity of highest weight (or singular) vectors associated with character chi_117 of Monster module.at n=41A034505
• Multiplicity of highest weight (or singular) vectors associated with character chi_119 of Monster module.at n=44A034507
• Sum of n and floor of each previous term divided by its distance from n.at n=21A180086
• Number of 4-step E, S, NW and NE-moving king's tours on an n X n board summed over all starting positions.at n=32A187587
• a(n) = Sum_{i=0..n} Sum_{j=0..n} (i XOR j), where XOR is the binary logical exclusive-or operator.at n=44A224923
• Number of unlabeled multigraphs with n edges and degree >= 3 at each node, loops allowed.at n=11A360865