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 A202788 Number of n X n binary arrays with every one adjacent to another one horizontally, diagonally, antidiagonally or vertically 1
 1, 12, 398, 45519, 21649928, 41382940317, 314293683119573, 9507225584601580673, 1146261969825089219425266, 550762886957237938187269588944, 1054576957682838130471744629459577753 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A202795 LINKS R. H. Hardin, Table of n, a(n) for n = 1..15 EXAMPLE Some solutions for n=4 ..1..1..1..1....0..0..1..1....0..1..1..0....0..1..1..1....0..1..0..0 ..0..0..1..1....0..1..0..1....1..0..1..0....0..0..0..1....0..1..1..1 ..0..1..1..1....0..0..0..0....1..1..1..0....1..0..0..1....1..1..0..1 ..1..0..0..0....1..1..0..0....1..1..1..1....1..1..1..1....1..0..1..0 CROSSREFS Sequence in context: A356258 A286038 A276482 * A285028 A292784 A003772 Adjacent sequences: A202785 A202786 A202787 * A202789 A202790 A202791 KEYWORD nonn AUTHOR R. H. Hardin Dec 24 2011 STATUS approved

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Last modified June 7 20:32 EDT 2023. Contains 363157 sequences. (Running on oeis4.)