A231340 Number of (n+1)X(4+1) 0..3 arrays with no element unequal to a strict majority of its horizontal and vertical neighbors, with values 0..3 introduced in row major order

12, 59, 453, 3572, 30269, 259011, 2278003, 20081717, 178468093, 1587202009, 14147804875, 126135696317, 1125282491561, 10039469984309, 89585462173947, 799412950981660, 7133898167065735, 63662603102524287, 568130626858337409

Offset

1,1

Comments

Column 4 of A231343

Links

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

R. H. Hardin, Empirical recurrence of order 97

Formula

Empirical recurrence of order 97 (see link above)

Example

Some solutions for n=5
..0..0..0..0..0....0..1..1..0..0....0..1..1..1..1....0..0..0..0..0
..0..1..1..0..0....0..1..1..0..0....0..1..1..2..2....1..1..1..0..0
..0..1..1..1..0....0..0..0..0..0....0..0..0..2..2....1..1..1..0..0
..0..1..1..1..0....0..1..1..2..2....2..2..0..0..0....0..0..1..2..2
..0..1..1..0..0....0..1..1..2..2....2..2..3..3..0....0..0..1..2..2
..0..1..1..0..0....0..1..1..2..2....2..2..3..3..0....1..1..1..1..1

Crossrefs

Sequence in context: A062477 A048362 A231215 * A099321 A097302 A075367

Adjacent sequences: A231337 A231338 A231339 * A231341 A231342 A231343

Keyword

nonn

Author

R. H. Hardin, Nov 07 2013

Status

approved