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A186912 Number of (n+2)X8 0..6 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order 1
4028133387613, 921058887545363, 110909004238159456, 8880688768983407407, 522748636954347087650, 23991605690718487651365, 893383694291331850798966, 27790825962428614280888055, 738601710673817085331465603 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A186915

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..19

EXAMPLE

Some solutions for 4X8

..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..5....0..0..0..0..0..0..0..5

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

..0..0..0..0..0..0..2..4....0..0..0..0..0..0..6..2....0..0..0..0..0..0..3..6

..0..0..0..0..0..0..4..4....0..0..0..0..0..0..6..5....0..0..0..0..0..0..4..0

CROSSREFS

Sequence in context: A222558 A290504 A172630 * A288284 A233504 A013640

Adjacent sequences:  A186909 A186910 A186911 * A186913 A186914 A186915

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 28 2011

STATUS

approved

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Last modified January 25 19:09 EST 2020. Contains 331249 sequences. (Running on oeis4.)