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 A297739 Number of 7Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2 or 4 neighboring 1s. 1
 1, 13, 1026, 4676, 53173, 414651, 6241242, 56834907, 675663465, 6893539424, 81152925020, 872784930365, 9965405854651, 109677107185776, 1242862523673395, 13837791169587782, 156042319458946688, 1745891736485935186 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row 7 of A297733. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=5 ..0..0..1..0..0. .0..1..1..1..1. .0..0..0..0..0. .0..0..0..0..0 ..0..1..1..1..1. .0..1..1..1..1. .1..1..1..1..1. .0..1..1..1..0 ..1..1..1..1..0. .0..0..0..0..0. .0..1..0..1..0. .0..1..1..1..0 ..0..0..1..0..0. .0..1..1..1..1. .0..1..0..0..0. .0..0..0..0..0 ..1..1..0..1..1. .1..1..0..1..0. .1..1..1..0..0. .1..1..1..0..0 ..0..1..0..1..0. .1..0..1..1..1. .1..0..1..0..0. .0..1..0..0..0 ..0..0..1..0..0. .0..1..0..0..0. .0..1..0..0..0. .1..1..1..0..0 CROSSREFS Cf. A297733. Sequence in context: A203708 A342811 A301870 * A128685 A292337 A201118 Adjacent sequences:  A297736 A297737 A297738 * A297740 A297741 A297742 KEYWORD nonn AUTHOR R. H. Hardin, Jan 04 2018 STATUS approved

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Last modified January 22 23:50 EST 2022. Contains 350504 sequences. (Running on oeis4.)