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 A278020 Number of 7Xn 0..2 arrays with every element plus 1 mod 3 equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero. 1
 0, 48510, 35217368, 33064544648, 30622716754158, 28318244060569024, 26189441962786135952, 24220244091289286969102, 22398930025770598869206272, 20714553726314324138411735648, 19156837196453052929812096448268 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row 7 of A278014. LINKS R. H. Hardin, Table of n, a(n) for n = 1..43 EXAMPLE Some solutions for n=2 ..0..2. .0..1. .0..1. .0..2. .0..2. .0..2. .0..2. .0..2. .0..2. .0..1 ..1..1. .1..2. .0..2. .1..1. .1..2. .1..0. .1..0. .1..1. .1..2. .0..2 ..0..0. .1..1. .1..1. .2..0. .0..0. .0..2. .0..0. .0..2. .0..2. .1..1 ..0..1. .2..0. .0..2. .1..0. .1..2. .0..2. .0..2. .0..1. .2..2. .1..0 ..2..2. .2..0. .2..2. .1..2. .1..0. .1..2. .1..2. .1..0. .2..0. .2..2 ..0..2. .0..1. .0..2. .0..1. .1..0. .0..2. .0..0. .2..1. .2..1. .2..1 ..1..1. .2..0. .1..2. .2..2. .2..1. .1..0. .2..1. .0..0. .0..0. .0..0 CROSSREFS Cf. A278014. Sequence in context: A083627 A031650 A223935 * A237105 A234230 A251597 Adjacent sequences: A278017 A278018 A278019 * A278021 A278022 A278023 KEYWORD nonn AUTHOR R. H. Hardin, Nov 08 2016 STATUS approved

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Last modified December 6 01:58 EST 2023. Contains 367594 sequences. (Running on oeis4.)