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A231215 Number of (n+1) X (4+1) 0..2 arrays with no element unequal to a strict majority of its horizontal and vertical neighbors, with values 0..2 introduced in row major order. 1
12, 59, 408, 2892, 20027, 139438, 969461, 6745110, 46938804, 326645650, 2273218682, 15819608975, 110091246193, 766140117967, 5331683762978, 37103974744989, 258212125773531, 1796936761480570, 12505151919361622 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A231219.

LINKS

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

R. H. Hardin, Empirical recurrence of order 68

FORMULA

Empirical recurrence of order 68 (see link above).

EXAMPLE

Some solutions for n=4:

..0..1..1..2..2....0..1..1..2..2....0..0..1..1..2....0..0..0..0..0

..0..1..1..2..2....0..1..1..2..2....0..0..1..1..2....0..0..1..1..0

..0..1..1..1..2....0..2..2..2..2....0..0..1..1..2....1..1..1..1..0

..0..1..1..1..2....0..2..2..1..1....0..0..1..1..2....1..1..1..1..0

..0..1..1..1..2....0..2..2..1..1....2..2..2..2..2....1..1..1..1..0

CROSSREFS

Cf. A231219.

Sequence in context: A244907 A062477 A048362 * A231340 A099321 A097302

Adjacent sequences:  A231212 A231213 A231214 * A231216 A231217 A231218

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 05 2013

STATUS

approved

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Last modified October 17 17:21 EDT 2021. Contains 348065 sequences. (Running on oeis4.)