A240344 Number of nX4 0..3 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 three plus the sum of the elements diagonally to its northwest, modulo 4.

16, 334, 6376, 115194, 2044806, 36002110, 631121148, 11038084086, 192823850946, 3366365227614, 58751736029618, 1025192866676076, 17887558908780926, 312087062147572324, 5444893933313533382, 94994231990559707138

Offset

1,1

Comments

Column 4 of A240347

Links

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

Example

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

Crossrefs

Sequence in context: A375223 A223394 A218476 * A068368 A013993 A058722

Adjacent sequences: A240341 A240342 A240343 * A240345 A240346 A240347

Keyword

nonn

Author

R. H. Hardin, Apr 04 2014

Status

approved