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A199522
Number of nX7 0..3 arrays with values 0..3 introduced in row major order, the number of instances of each value within one of each other, and every element equal to two or fewer horizontal or vertical neighbors
0
105, 1030230, 5866391058, 14045226977086, 506637005741617919
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OFFSET
1,1
COMMENTS
Column 7 of
A199523
LINKS
Table of n, a(n) for n=1..5.
EXAMPLE
Some solutions for n=3
..0..1..1..2..2..3..3....0..0..1..2..3..3..2....0..0..1..2..2..3..2
..0..1..0..3..3..2..2....0..1..0..1..3..2..2....0..1..0..3..1..3..2
..0..0..0..3..1..1..2....0..0..3..1..1..2..3....0..0..1..3..1..3..2
CROSSREFS
Sequence in context:
A096150
A068256
A062031
*
A036201
A286287
A050810
Adjacent sequences:
A199519
A199520
A199521
*
A199523
A199524
A199525
KEYWORD
nonn
AUTHOR
R. H. Hardin
Nov 07 2011
STATUS
approved
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Last modified July 30 08:03 EDT 2024. Contains 374738 sequences. (Running on oeis4.)