

A284770


Number of n X 7 0..1 arrays with the number of 1's horizontally or vertically adjacent to some 0 one less than the number of 0's adjacent to some 1.


1



28, 2896, 298003, 31677488, 3595841703, 415218866820, 48994677634459, 5840008221148574, 702889504624919147, 85151294479167806690, 10373863251897460544155, 1269424721127000908485982
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OFFSET

1,1


COMMENTS



LINKS



EXAMPLE

Some solutions for n=2
..0..1..1..0..0..1..1. .0..0..1..1..0..0..0. .0..0..1..0..1..1..0
..0..1..0..0..0..1..1. .1..1..0..1..0..0..1. .0..0..1..1..0..0..0


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



