A240417 Number of 6Xn 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 zero plus the sum of the elements diagonally to its northwest, modulo 4

129, 2105, 79090, 2051450, 45245148, 1615637679, 38249442962, 955439201951, 28422088797325, 653249891295733, 18365583086851745, 495763997190145130, 12117652634246661607, 341107664098435880768, 8779799870508201530267

Offset

1,1

Comments

Row 6 of A240412

Links

R. H. Hardin, Table of n, a(n) for n = 1..17

Example

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

Crossrefs

Sequence in context: A233305 A268266 A230187 * A353940 A351270 A088719

Adjacent sequences: A240414 A240415 A240416 * A240418 A240419 A240420

Keyword

nonn

Author

R. H. Hardin, Apr 04 2014

Status

approved