A240252 Number of 3Xn 0..3 arrays with no element equal to the sum of elements to its left or the sum of the elements above it or the sum of the elements diagonally to its northwest or the sum of the elements antidiagonally to its northeast, modulo 4

14, 0, 16, 162, 688, 3964, 16600, 110134, 492060, 3362836, 15603288, 109979570, 524685654, 3720395188, 18147197844, 127927252744, 635400890972, 4432069428266, 22357505967916, 154094669426556, 788035670396332

Offset

1,1

Comments

Row 3 of A240250

Links

R. H. Hardin, Table of n, a(n) for n = 1..53

Example

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

Crossrefs

Sequence in context: A243830 A002337 A008423 * A317977 A023918 A062785

Adjacent sequences: A240249 A240250 A240251 * A240253 A240254 A240255

Keyword

nonn

Author

R. H. Hardin, Apr 03 2014

Status

approved