9203634

Appears in sequences

• Fermat coefficients.at n=20A000973
• Number of dissections of a polygon: binomial(6n,n)/(5n+1).at n=8A002295
• Generalized or s-Catalan numbers.at n=41A137211
• a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/5)} a(5*k) * a(n-1-5*k).at n=40A386379
• Number of achiral polyominoes with n heptagonal cells of the hyperbolic regular tiling with Schläfli symbol {7,oo}.at n=16A389563