A240274 Number of 4Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 4

7, 36, 582, 8265, 126286, 2059061, 34514871, 591083808, 10257888481, 179492029479, 3156570684216, 55683928149753, 984159273442563, 17414013354270353, 308343982790239450, 5462057581927992592

Offset

1,1

Comments

Row 4 of A240271

Links

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

Example

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

Crossrefs

Sequence in context: A020085 A356076 A120106 * A129737 A176544 A281994

Adjacent sequences: A240271 A240272 A240273 * A240275 A240276 A240277

Keyword

nonn

Author

R. H. Hardin, Apr 03 2014

Status

approved