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A232254
Number of (n+1)X(5+1) 0..2 arrays with every element both >= and <= some horizontal or antidiagonal neighbor
1
7673, 1532151, 304291873, 60698037193, 12109668893083, 2416017612073105, 482023848904207049, 96169442828409939321, 19186938393029860565803, 3828020581416314242352829, 763735269948266339544495123
OFFSET
1,1
COMMENTS
Column 5 of A232257
FORMULA
Empirical recurrence of order 51 (see link above)
EXAMPLE
Some solutions for n=1
..2..2..2..2..2..1....1..1..1..1..0..1....1..1..0..0..2..1....0..0..1..2..1..2
..2..0..0..1..0..0....2..2..2..0..1..1....1..1..1..2..1..1....0..2..2..1..2..2
CROSSREFS
Sequence in context: A205040 A252406 A145307 * A008774 A229508 A249204
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 21 2013
STATUS
approved