59101

Appears in sequences

• Matrix product of Stirling2-triangle A008277(n,k) and unsigned Lah-triangle |A008297(n,k)|.at n=23A088729
• Numerators in expansion of (1+x-sqrt(1-x^2))/(x(1-x)).at n=15A141245
• Numerators in expansion of (1+x-sqrt(1-x^2))/(x(1-x)).at n=16A141245
• Number of Motzkin n-paths with two kinds of level steps one of which is a final step.at n=12A143013
• Number of triangular involutions of n. A triangular involution is a square involution with at most three faces.at n=16A164991
• Exponential Riordan array [1, 1/(2-e^x)-1].at n=31A256893
• Number of partitions of n such that the (sum of distinct even parts) < n/2.at n=43A284616
• Number of compositions of n whose Lyndon factorization is uniform.at n=19A329397