A239983 Number of nX5 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4.
1, 6, 38, 530, 7113, 83658, 1174822, 15307425, 192702130, 2733573580, 34877309132, 455831231370, 6232060203371, 79504957220188, 1061047782962716, 14175980247721974, 182879377335377352, 2451126765466429888
Offset: 1
Keywords
Examples
Some solutions for n=4 ..3..0..0..0..0....3..0..0..0..0....3..0..0..0..0....3..0..0..0..0 ..2..3..0..0..0....2..1..0..0..0....2..3..0..3..3....2..3..0..3..3 ..2..0..0..3..0....2..0..3..3..3....2..0..0..3..3....2..0..1..2..2 ..2..0..0..0..1....3..0..0..2..2....3..2..0..2..1....2..0..0..1..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Comments