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 A181035 Number of nX(n+4) binary matrices with no initial bit string in any row or column divisible by 4 1
 1, 13, 239, 10897, 1095851, 250916131, 129422885699, 150985649174085, 397743903151933881, 2367568471466798904283, 31835463913062005686452609, 967121732734103600475330208107, 66372797708066134019183673485369717 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Superdiagonal 4 of A181031 LINKS R. H. Hardin, Table of n, a(n) for n=1..22 EXAMPLE Some solutions for 4X8 ..1..1..1..1..1..1..1..1....1..1..1..1..1..1..1..1....1..1..1..1..1..1..1..1 ..1..0..1..0..1..0..1..0....1..0..1..0..1..0..1..0....1..0..1..0..1..0..1..0 ..1..1..0..1..0..1..0..1....1..1..0..1..0..1..0..1....1..1..0..1..0..1..0..1 ..1..0..1..0..1..0..1..0....1..0..1..0..1..0..1..1....1..0..1..0..1..1..1..0 CROSSREFS Sequence in context: A051689 A000824 A229384 * A228795 A271782 A157969 Adjacent sequences: A181032 A181033 A181034 * A181036 A181037 A181038 KEYWORD nonn AUTHOR R. H. Hardin Sep 30 2010 STATUS approved

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Last modified September 12 04:22 EDT 2024. Contains 375842 sequences. (Running on oeis4.)