A240404 Number of nX5 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 or zero plus the sum of the elements diagonally to its northwest, modulo 4.

7, 77, 1381, 13648, 257243, 3366314, 43820839, 766539340, 9754760605, 139442821024, 2170660872648, 28425049610123, 428335838522441, 6234809732594859, 85273887883266129, 1280632016847475497

Offset: 1

Author

R. H. Hardin, Apr 04 2014

Keywords

• nonn

Comments

Column 5 of A240406

Examples

			Some solutions for n=4
..2..1..1..2..1....2..1..2..1..1....2..1..2..1..1....2..1..1..2..1
..3..1..2..2..3....3..1..3..3..2....3..1..2..1..2....2..1..3..0..1
..3..2..0..0..0....3..2..1..1..3....3..2..0..0..1....2..0..2..3..3
..2..0..0..0..1....2..0..2..2..2....2..0..0..0..0....2..0..0..2..2
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210