61848

Appears in sequences

• Number of polyominoes of site-perimeter n with 8-holes allowed.at n=11A216820
• Numbers k such that Bernoulli number B_{k} has denominator 140100870.at n=7A295599
• Expansion of (1/x) * Series_Reversion( x / (1+x)^2 * (1-x^3) ).at n=9A369398