63985

Appears in sequences

• Base 6 digits are, in order, the first n terms of the periodic sequence with initial period 1,2.at n=6A037483
• Number of nX5 0..4 arrays with each element equal to the number its horizontal and vertical neighbors within one of itself.at n=10A196014
• Hilltop maps: number of nX2 binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..3 nX2 array.at n=7A218190
• T(n,k)=Hilltop maps: number of nXk binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..3 nXk array.at n=37A218196
• T(n,k)=Hilltop maps: number of nXk binary arrays indicating the locations of corresponding elements not exceeded by any horizontal, diagonal or antidiagonal neighbor in a random 0..3 nXk array.at n=43A218638