Hilltop maps: number of n X n binary arrays indicating the locations of corresponding elements not exceeded by any king-move neighbor in a random 0..2 n X n array.

A218312

Hilltop maps: number of n X n binary arrays indicating the locations of corresponding elements not exceeded by any king-move neighbor in a random 0..2 n X n array.

Terms

    a(0) =1a(1) =15a(2) =511a(3) =65089a(4) =33296833a(5) =68184176641

External references