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A186910 Number of (n+2)X6 0..6 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order 1
22000126445, 2536761070723, 171334955820947, 8185872059408158, 300268014063911584, 8880688768983407407, 219019175194540430058, 4617630757685272558765, 84844963231516976756260 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A186915
LINKS
FORMULA
Polynomial of degree 101 in n, see link.
EXAMPLE
Some solutions for 4X6
..0..0..0..0..0..4....0..0..0..0..0..3....0..0..0..0..0..5....0..0..0..0..0..0
..0..0..0..0..2..5....0..0..0..0..1..2....0..0..0..0..2..2....0..0..0..0..0..6
..0..0..0..0..3..5....0..0..0..0..1..3....0..0..0..0..2..5....0..0..0..0..1..1
..0..0..0..0..6..2....0..0..0..0..5..4....0..0..0..0..5..2....0..0..0..0..3..1
CROSSREFS
Sequence in context: A119478 A337914 A101816 * A129250 A216398 A121841
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 28 2011
STATUS
approved

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Last modified March 2 02:30 EST 2024. Contains 370447 sequences. (Running on oeis4.)