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Revision History for A282861

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Number of nX7 0..1 arrays with no 1 equal to more than one of its horizontal, vertical and antidiagonal neighbors.
(history; published version)

#4 by R. H. Hardin at Thu Feb 23 08:09:44 EST 2017

STATUS

editing

approved

#3 by R. H. Hardin at Thu Feb 23 08:09:38 EST 2017

LINKS

R. H. Hardin, <a href="/A282861/b282861.txt">Table of n, a(n) for n = 1..210</a>

#2 by R. H. Hardin at Thu Feb 23 08:09:18 EST 2017

NAME

allocated for R. H. Hardin

Number of nX7 0..1 arrays with no 1 equal to more than one of its horizontal, vertical and antidiagonal neighbors.

DATA

81, 2028, 49471, 1369929, 35681883, 945547378, 25000646212, 660597156170, 17464365749979, 461623512113494, 12202233224208515, 322544923721567414, 8525895890487351554, 225367025047699642436, 5957177684230357360501

OFFSET

1,1

COMMENTS

Column 7 of A282862.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Cf. A282862.

KEYWORD

allocated

nonn

AUTHOR

R. H. Hardin, Feb 23 2017

STATUS

approved

editing

#1 by R. H. Hardin at Thu Feb 23 07:55:46 EST 2017

NAME

allocated for R. H. Hardin

KEYWORD

allocated

STATUS

approved