51800

Appears in sequences

• Expansion of e.g.f.: exp(arcsin(x)*log(x+1)).at n=8A012304
• Revert transform of (1 + x - x^3)/(1 + 2x + 2x^2).at n=12A049145
• Triangle read by rows: S_B(n,k) = "Type B" Stirling numbers of the second kind.at n=34A085483
• a(1) = 5, a( n) = prime(a(n-1)) - a(n-1).at n=9A179274
• Number of nX4 0..1 arrays avoiding 0 1 0 horizontally and 1 0 0 vertically.at n=4A206885
• T(n,k)=Number of nXk 0..1 arrays avoiding 0 1 0 horizontally and 1 0 0 vertically.at n=32A206889
• Number of 5Xn 0..1 arrays avoiding 0 1 0 horizontally and 1 0 0 vertically.at n=3A206891
• Number of sets of 4 distinct collinear points in an n X n permutation array in which leftmost pair has same spacing as rightmost pair.at n=23A234471
• Number of (n+1) X (n+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 5 (constant-stress 1 X 1 tilings).at n=6A235270
• Number of (n+1) X (7+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 5 (constant-stress 1 X 1 tilings).at n=6A235277
• Number of n-digit positive integers where all pairs of consecutive digits have a difference of at least 3.at n=5A383071