A240373 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 zero plus the sum of the elements diagonally to its northwest, modulo 4

7, 67, 450, 5161, 36398, 271764, 2492182, 17380978, 143489019, 1182292032, 8603707764, 72258762282, 564807764665, 4330558939711, 35641259507701, 274748439605812, 2168553682544862, 17443667551284635, 135153953683819534

Offset

1,1

Comments

Column 4 of A240376

Links

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

Example

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

Crossrefs

Sequence in context: A139910 A250227 A250275 * A077789 A250165 A186655

Adjacent sequences: A240370 A240371 A240372 * A240374 A240375 A240376

Keyword

nonn

Author

R. H. Hardin, Apr 04 2014

Status

approved