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 A208374 Number of n X n 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 1 vertically 1
 2, 16, 72, 420, 2176, 10660, 60984, 340816, 1846240, 11076228, 66303360, 390426916, 2456007216, 15586002640, 98058552648, 645057461220, 4299810563584, 28563593727716, 195777751059000, 1361449965542992, 9468978890210480 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Diagonal of A208379 LINKS R. H. Hardin, Table of n, a(n) for n = 1..39 EXAMPLE Some solutions for n=4 ..1..1..0..0....1..0..0..1....1..0..0..1....1..1..0..1....1..0..0..1 ..1..1..0..0....1..1..0..0....0..1..1..0....1..1..0..1....0..1..0..1 ..0..1..0..0....1..1..0..0....0..0..1..0....1..1..0..1....0..1..0..0 ..0..1..0..0....1..1..0..0....0..0..1..0....0..1..0..1....0..1..0..0 CROSSREFS Sequence in context: A006729 A007758 A207874 * A207677 A207508 A208063 Adjacent sequences: A208371 A208372 A208373 * A208375 A208376 A208377 KEYWORD nonn AUTHOR R. H. Hardin Feb 25 2012 STATUS approved

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Last modified June 15 13:08 EDT 2024. Contains 373407 sequences. (Running on oeis4.)