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 A262851 Number of (2+2)X(n+2) 0..1 arrays with each row divisible by 7 and column not divisible by 7, read as a binary number with top and left being the most significant bits. 1
 13, 34, 196, 3181, 31050, 352880, 4679725, 58693450, 749598500, 9769811821, 126477115922, 1640601801744, 21334300812253, 277222463778754, 3602979823609668, 46840315814579821, 608897998235183514 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row 2 of A262849. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=4 ..1..1..1..1..1..1....1..1..1..1..1..1....0..1..1..1..0..0....0..1..1..1..0..0 ..1..0..1..0..1..0....0..1..0..1..0..1....0..0..0..1..1..1....0..0..0..0..0..0 ..1..0..1..0..1..0....0..0..0..1..1..1....1..1..0..0..0..1....1..1..0..0..0..1 ..1..0..1..0..1..0....0..1..0..1..0..1....0..1..1..1..0..0....1..1..1..1..1..1 CROSSREFS Cf. A262849. Sequence in context: A067430 A214729 A280322 * A271750 A082214 A115161 Adjacent sequences: A262848 A262849 A262850 * A262852 A262853 A262854 KEYWORD nonn AUTHOR R. H. Hardin, Oct 03 2015 STATUS approved

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Last modified January 27 21:49 EST 2023. Contains 359849 sequences. (Running on oeis4.)