A241347 Number of nX4 0..3 arrays with no element equal to the same number of vertical neighbors as horizontal neighbors, with new values 0..3 introduced in row major order

2, 22, 415, 10998, 295782, 8216943, 229552661, 6440926150, 180941958872, 5086440781934, 143018442461614, 4021763658647636, 113099275164521657, 3180615701360043164, 89447028720676238703, 2515486937762307225624

Offset

1,1

Comments

Column 4 of A241349

Links

R. H. Hardin, Table of n, a(n) for n = 1..193

Example

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

Crossrefs

Sequence in context: A287595 A201511 A264839 * A163436 A328158 A266522

Adjacent sequences: A241344 A241345 A241346 * A241348 A241349 A241350

Keyword

nonn

Author

R. H. Hardin, Apr 19 2014

Status

approved