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A202458 Number of (n+2)X7 binary arrays with consecutive windows of three bits considered as a binary number nondecreasing in every row and column 1
1728, 4137, 9338, 19614, 38478, 71088, 124740, 209445, 338596, 529731, 805398, 1194128, 1731522, 2461458, 3437424, 4723983, 6398376, 8552269, 11293650, 14748882, 19064918, 24411684, 30984636, 39007497, 48735180, 60456903, 74499502 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A202461

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

FORMULA

Empirical: a(n) = (1/840)*n^7 + (3/40)*n^6 + (47/30)*n^5 + 16*n^4 + (10847/120)*n^3 + (11557/40)*n^2 + (258737/420)*n + 715

EXAMPLE

Some solutions for 6X6

..0..0..0..0..1..1..0....0..0..0..0..0..1..0....0..0..0..0..0..0..0

..0..0..0..0..1..1..1....0..0..0..0..1..1..0....0..0..0..0..0..0..0

..0..0..0..1..1..1..1....0..0..0..0..1..1..1....0..0..0..0..0..0..0

..0..0..0..1..1..1..1....1..1..1..1..1..1..1....0..0..0..0..1..1..0

..0..0..1..1..1..1..1....1..1..1..1..1..1..1....0..0..1..1..1..1..1

..0..0..0..1..1..1..1....0..0..1..1..1..1..1....0..1..1..1..1..1..1

CROSSREFS

Sequence in context: A232299 A280841 A032354 * A179694 A202200 A251188

Adjacent sequences:  A202455 A202456 A202457 * A202459 A202460 A202461

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 19 2011

STATUS

approved

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Last modified December 11 15:43 EST 2017. Contains 295905 sequences.