A241057 Number of 4Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or zero plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4

6, 6, 6, 64, 163, 280, 1423, 4167, 13389, 46605, 146031, 518568, 1559943, 5448063, 18661041, 57879161, 201222626, 664132824, 2176050370, 7339658200, 24139869513, 80786317859, 267972379590, 888853920796, 2971967179489, 9838548423147

Offset

1,1

Comments

Row 4 of A241054

Links

R. H. Hardin, Table of n, a(n) for n = 1..166

Example

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

Crossrefs

Sequence in context: A092281 A082796 A078245 * A247253 A244293 A196737

Adjacent sequences: A241054 A241055 A241056 * A241058 A241059 A241060

Keyword

nonn

Author

R. H. Hardin, Apr 15 2014

Status

approved