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A186628 Number of (n+2)X5 0..3 arrays with 3X3 subblock sums nondecreasing rightwards and downwards. 0
349839616, 80485522400, 18496850510312, 3990816642970118, 507626088316719132 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A186629
LINKS
EXAMPLE
Some solutions for 4X5
..0..0..0..0..1....0..0..2..0..3....0..0..2..0..0....0..0..0..0..3
..0..0..1..0..1....0..0..2..0..2....0..0..0..0..1....0..0..3..0..3
..0..2..3..0..0....0..2..0..0..0....0..0..0..0..1....0..2..3..0..1
..0..0..2..0..2....0..2..2..0..3....0..2..2..0..1....0..0..2..0..3
CROSSREFS
Sequence in context: A358705 A015381 A257384 * A032757 A288273 A219271
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 24 2011
STATUS
approved

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Last modified March 28 04:13 EDT 2024. Contains 371235 sequences. (Running on oeis4.)