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 A278202 Number of n X n 0..1 arrays with every element both equal and not equal to some elements at offset (-1,-1), (-1,0), (-1,1), (0,-1), (0,1), (1,-1), (1,0) or (1,1), with upper left element zero. 0
 0, 3, 97, 8242, 3295771, 5306819216, 33056811286568, 812312404546266967, 78877646007318566942149, 30229204386668969418436705255, 45720403850059908972915757270717926 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A278208. LINKS EXAMPLE Some solutions for n=4 ..0..1..1..1. .0..1..0..0. .0..0..1..1. .0..1..0..0. .0..1..0..1 ..0..1..0..0. .1..0..1..1. .0..1..0..0. .0..1..1..1. .0..1..1..0 ..1..0..0..0. .1..1..0..1. .1..1..1..1. .0..1..0..1. .1..1..1..1 ..1..1..1..0. .0..0..0..0. .1..0..0..0. .0..1..1..0. .1..0..0..1 CROSSREFS Cf. A278208. Sequence in context: A348491 A243155 A201843 * A246537 A057014 A334723 Adjacent sequences:  A278199 A278200 A278201 * A278203 A278204 A278205 KEYWORD nonn AUTHOR R. H. Hardin, Nov 15 2016 STATUS approved

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Last modified August 16 00:08 EDT 2022. Contains 356150 sequences. (Running on oeis4.)