A239411 Number of 7 X n 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it, modulo 4.

368, 113774, 32507376, 9402398952, 2671846338458, 765206237815409, 217822754771248124, 62224253930396430225, 17732860047914475927901, 5061141668045083629968143, 1443095146623473513048203207

Offset

1,1

Comments

Row 7 of A239405.

Links

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

Example

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

Crossrefs

Cf. A239405.

Sequence in context: A318938 A240006 A097501 * A239339 A352224 A294597

Adjacent sequences: A239408 A239409 A239410 * A239412 A239413 A239414

Keyword

nonn

Author

R. H. Hardin, Mar 17 2014

Status

approved