50751

Appears in sequences

• Denominators of continued fraction convergents to sqrt(381).at n=9A041723
• a(n) = 6^n + 4^n - 1.at n=6A155617
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 99", based on the 5-celled von Neumann neighborhood.at n=42A270158
• Array read by antidiagonals: Place k points in general position on each side of a regular n-gon and join every pair of the k*n boundary points by a chord; T(n,k) (n >= 3, k >= 0) gives the number of regions in the resulting planar graph.at n=49A392228