A241116 Number of nX4 0..3 arrays with no element equal to exactly three horizontal or vertical neighbors, with new values 0..3 introduced in row major order

15, 2614, 587555, 134229632, 30679522712, 7012241396116, 1602748583683541, 366331237082570675, 83730272300093086129, 19137757826895828304001, 4374209764040662469308200, 999788545392696494568265298

Offset

1,1

Comments

Column 4 of A241119

Links

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

R. H. Hardin, Empirical recurrence of order 74

Formula

Empirical recurrence of order 74 (see link above)

Example

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

Crossrefs

Sequence in context: A278410 A211902 A200797 * A126678 A340185 A208197

Adjacent sequences: A241113 A241114 A241115 * A241117 A241118 A241119

Keyword

nonn

Author

R. H. Hardin, Apr 16 2014

Status

approved