A240403 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 or zero plus the sum of the elements diagonally to its northwest, modulo 4

4, 24, 235, 1304, 13648, 98837, 692520, 6686074, 47001423, 368795251, 3172886576, 22843492846, 188803534301, 1516806583206, 11402126592178, 94073248811059, 733120766691045, 5706868084005386, 46267999865467117, 358824411389642466

Offset

1,1

Comments

Column 4 of A240406

Links

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

Example

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

Crossrefs

Sequence in context: A370875 A234012 A244760 * A366734 A074598 A346631

Adjacent sequences: A240400 A240401 A240402 * A240404 A240405 A240406

Keyword

nonn

Author

R. H. Hardin, Apr 04 2014

Status

approved