A240325 Number of n X 5 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4.
8, 80, 1677, 21455, 247187, 3898804, 43979526, 602874070, 8649395684, 101952716878, 1438937234148, 19175029391887, 237935384258519, 3335405244297922, 43049779553837333, 556801688251633585
Offset: 1
Keywords
Examples
Some solutions for n=4 ..3..2..2..2..3....2..3..2..2..3....3..2..3..2..3....3..2..3..3..2 ..2..3..0..0..0....3..1..1..0..0....2..3..0..3..2....2..3..2..2..3 ..2..0..1..1..2....3..2..2..0..2....3..2..2..2..0....3..2..0..0..3 ..2..0..1..2..3....2..3..0..3..3....2..1..0..2..3....3..1..3..2..3
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Crossrefs
Cf. A240327.
Comments