209536

Appears in sequences

• Number of closed meanders with 2n crossings and 5 digons.at n=28A300901
• Expansion of e.g.f. 1/(cosh(x) - tanh(x)).at n=9A352164
• Expansion of e.g.f. 1/(1 - sin(2*x) / 2).at n=9A381285