47687

Appears in sequences

• Number of nX5 binary arrays with each 1 adjacent to exactly one 0 vertically and one 0 horizontally.at n=8A183347
• Number of nX9 binary arrays with each 1 adjacent to exactly one 0 vertically and one 0 horizontally.at n=4A183351
• Number of n X 6 0..2 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 3.at n=28A239359
• Number of 2 X n 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.at n=11A280481