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 A223130 Number of 5Xn 0..2 arrays with no more than floor(5Xn/2) elements equal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order 1
 41, 5376, 622568, 112106293, 12483535858, 2373042420012, 266413907612919, 52026602889237335, 5888785066309216678, 1169006907613853988993, 133131028198472766703859, 26716908349922784017780109 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 5 of A223126 LINKS R. H. Hardin, Table of n, a(n) for n = 1..17 EXAMPLE Some solutions for n=3 ..0..0..1....0..0..0....0..0..1....0..0..1....0..0..1....0..0..1....0..0..1 ..1..0..1....1..1..2....1..2..1....1..2..2....1..0..1....0..0..1....1..0..2 ..1..2..1....1..1..0....1..2..2....0..2..1....0..2..1....1..0..1....2..1..0 ..1..2..1....2..1..2....0..1..0....0..0..1....1..0..1....2..0..1....0..0..1 ..2..0..2....0..1..2....2..1..1....1..0..2....0..2..1....0..2..1....0..2..1 CROSSREFS Sequence in context: A233079 A159992 A101830 * A091758 A208255 A221325 Adjacent sequences: A223127 A223128 A223129 * A223131 A223132 A223133 KEYWORD nonn AUTHOR R. H. Hardin Mar 15 2013 STATUS approved

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Last modified November 29 12:29 EST 2022. Contains 358427 sequences. (Running on oeis4.)