50267

Appears in sequences

• Hexagonal pyramidal numbers, or greengrocer's numbers.at n=42A002412
• Odd hexagonal pyramidal numbers.at n=21A015225
• Majority value maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, vertical and antidiagonal neighbors in a random 0..2 nX4 array.at n=3A220367
• T(n,k)=Majority value maps: number of nXk binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, vertical and antidiagonal neighbors in a random 0..2 nXk array.at n=24A220369
• 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 vertices in the resulting planar graph.at n=49A392261