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 A284164 Number of nX7 0..1 arrays with the number of 1s horizontally or vertically adjacent to some 0 equal to the number of 0s adjacent to some 1, with top left element zero. 1
 33, 1689, 154108, 16699997, 1852406216, 213897742464, 25064817057781, 2981736353245523, 357844048109256955, 43278292532056389680, 5263990195553603263431, 643350359729498071977340 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 7 of A284165. LINKS R. H. Hardin, Table of n, a(n) for n = 1..19 EXAMPLE Some solutions for n=3 ..0..1..1..1..0..1..0. .0..1..0..0..1..1..1. .0..0..0..0..0..1..1 ..0..1..1..0..0..1..1. .1..1..1..0..1..1..0. .0..0..0..1..1..0..0 ..0..1..0..1..0..0..1. .0..0..1..0..0..1..0. .1..1..1..0..1..1..0 CROSSREFS Cf. A284165. Sequence in context: A093756 A284333 A284198 * A284221 A264170 A180920 Adjacent sequences:  A284161 A284162 A284163 * A284165 A284166 A284167 KEYWORD nonn AUTHOR R. H. Hardin, Mar 21 2017 STATUS approved

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Last modified December 15 17:41 EST 2019. Contains 330000 sequences. (Running on oeis4.)