A239336 Number of nX4 0..3 arrays with no element equal to one plus the sum of elements to its left or three plus the sum of elements above it, modulo 4

28, 926, 27341, 790681, 22952323, 663249556, 19117551262, 550960518608, 15873533676775, 457181997376959, 13166310184133045, 379162593435951456, 10918763117793096685, 314422821700641922733, 9054241291311457562833

Offset

1,1

Comments

Column 4 of A239340

Links

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

Example

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

Crossrefs

Sequence in context: A057412 A160263 A129461 * A203135 A097579 A091549

Adjacent sequences: A239333 A239334 A239335 * A239337 A239338 A239339

Keyword

nonn

Author

R. H. Hardin, Mar 16 2014

Status

approved