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A203335 Number of nX5 0..5 arrays with every nonzero element less than or equal to at least two horizontal and vertical neighbors 1
1, 846, 532547, 156011082, 40063085907, 11409771585523, 3356615719680977, 978786459361069636, 285310208141080065257, 83540216581264773577930, 24502037639116600225965121, 7186736093273565053394656571 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 5 of A203338

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..38

EXAMPLE

Some solutions for n=4

..2..3..3..5..5....2..5..5..2..0....0..2..2..1..0....1..5..5..1..0

..2..5..5..5..5....4..5..5..2..0....3..4..4..3..3....1..5..5..2..1

..1..5..5..5..2....4..3..3..4..4....3..4..4..3..3....1..1..3..3..1

..0..5..5..1..0....4..4..4..4..4....0..2..2..0..0....0..0..3..3..0

CROSSREFS

Sequence in context: A188296 A187861 A280484 * A252253 A247532 A235065

Adjacent sequences:  A203332 A203333 A203334 * A203336 A203337 A203338

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 31 2011

STATUS

approved

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Last modified April 23 05:34 EDT 2021. Contains 343199 sequences. (Running on oeis4.)