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 A284192 Number of n X n 0..1 arrays with the number of 1's horizontally, antidiagonally or vertically adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero. 0
 1, 4, 43, 5268, 1488503, 3083244672, 18564422929880, 573011303756296687, 62959447148443427630088 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A284199. LINKS EXAMPLE Some solutions for n=4 ..0..0..0..1. .0..0..1..1. .0..1..1..1. .0..1..0..1. .0..1..1..0 ..0..0..1..1. .1..0..0..0. .0..0..0..0. .0..0..0..1. .0..1..0..1 ..1..0..0..0. .1..0..0..0. .1..0..1..1. .0..1..1..0. .1..0..1..0 ..1..1..0..1. .1..1..1..1. .0..1..1..1. .1..0..1..1. .1..0..0..1 CROSSREFS Cf. A284199. Sequence in context: A176827 A220675 A222979 * A278798 A102388 A284065 Adjacent sequences:  A284189 A284190 A284191 * A284193 A284194 A284195 KEYWORD nonn AUTHOR R. H. Hardin, Mar 22 2017 STATUS approved

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Last modified November 27 09:19 EST 2021. Contains 349365 sequences. (Running on oeis4.)