4638656

Appears in sequences

• Number of n X 2 binary arrays with every element equal to either the sum mod 2 of its vertical neighbors or the sum mod 2 of its horizontal neighbors.at n=17A183467
• Number of n X 1 0..3 arrays with no element equal to one plus the sum of elements to its left or three plus the sum of elements above it, modulo 4.at n=17A239333
• Number of n-length words on {0,1,2} in which 0 appears only in runs of length 2.at n=18A255115