193440

Appears in sequences

• Triangle read by rows: T(n,k) is the number of skew Dyck paths of semilength n and having k UU's (doublerises) (n >= 1; 0 <= k <= n-1).at n=62A128718
• a(n) = ((2^b-1)/phi(n))*Sum_{d|n} Moebius(n/d)*d^(b-1) for b = 5.at n=14A160894
• Number of (w,x,y,z) with all terms in {1,...,n} and w>=2x and y<3z.at n=31A212520
• Triangle T(n,k) represents the coefficients of (x^16*d/dx)^n, where n=1,2,3,...; generalization of Stirling numbers of second kind A008277, Lah-numbers A008297.at n=11A223518
• Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k L-shaped corners (n>=2, k>=0).at n=52A273717
• Numbers k such that A122111(k) [conjugated prime factorization of k] is one of Ore's Harmonic numbers (in A001599).at n=21A336317
• Number of ways to write n as an ordered sum of 10 nonzero triangular numbers.at n=41A340955