111897

Appears in sequences

• Expansion of (sqrt(1+3*x)-sqrt(1-5*x))/(4*x*sqrt(1-x)).at n=10A098465
• A mean binomial transform of the Catalan numbers.at n=10A102318
• Number of permutations of length n which avoid the patterns 1234, 2431, 3412.at n=15A116755