15101701

Properties

Appears in sequences

• Generalized Catalan numbers: a(n+1) = a(n) + Sum_{k=1..n-1} a(k)*a(n-1-k).at n=22A004148
• Number of elevated peakless Motzkin paths.at n=24A203019
• Prime generalized Catalan numbers.at n=3A212276
• Expansion of (1 - x - x^2 - sqrt((1 - x - x^2)^2 - 4*x^3))/(2*x^3) in powers of x.at n=21A292460
• Prime numbersat n=976862