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A186911 Number of (n+2)X7 0..6 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order 1
319741716426, 52666517720011, 4805827783188400, 300268014063911584, 14077041692560748494, 522748636954347087650, 15954040054059557650482, 411179480114108991321807, 9138537360691131917393508 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A186915
LINKS
FORMULA
Polynomial of degree 107 in n, see link.
EXAMPLE
Some solutions for 4X7
..0..0..0..0..0..0..2....0..0..0..0..0..1..2....0..0..0..0..0..0..2
..0..0..0..0..0..0..3....0..0..0..0..0..2..3....0..0..0..0..0..1..4
..0..0..0..0..0..4..0....0..0..0..0..0..5..4....0..0..0..0..0..1..4
..0..0..0..0..0..5..2....0..0..0..0..0..5..5....0..0..0..0..0..6..3
CROSSREFS
Sequence in context: A354071 A022263 A216907 * A340155 A172714 A080132
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 28 2011
STATUS
approved

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Last modified February 23 02:31 EST 2024. Contains 370265 sequences. (Running on oeis4.)