255704

Appears in sequences

• Number of length n+1 0..2 arrays with the sum of the maximum of each adjacent pair multiplied by some arrangement of +-1 equal to zero.at n=10A250640
• Number of necklaces with n white beads and 7*n black beads.at n=6A261501
• Expansion of e.g.f. (1/x) * Series_Reversion( x / (1 + 3*x*exp(x))^(1/3) ).at n=8A380081