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A207517 Number of nX6 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically 1
21, 441, 2307, 19909, 137719, 1048423, 7666319, 57113109, 422082891, 3130112351, 23173976223, 171676789835, 1271417316909, 9417475398607, 69753625991829, 516671332697659, 3826965495103137, 28346096345105751, 209956452832167033 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A207519

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

..1..1..0..1..1..1....1..0..1..1..1..0....0..1..1..0..1..1....1..1..0..1..1..1

..1..0..0..0..0..0....0..1..1..1..1..0....0..1..1..1..1..0....0..0..0..0..0..0

..0..0..0..0..0..0....0..1..1..1..0..0....1..0..1..1..0..0....0..0..0..0..0..0

..0..1..1..1..1..0....0..0..0..0..0..0....1..0..0..0..0..0....0..1..1..1..1..0

CROSSREFS

Sequence in context: A207562 A207417 A207389 * A207246 A208167 A207066

Adjacent sequences:  A207514 A207515 A207516 * A207518 A207519 A207520

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 18 2012

STATUS

approved

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Last modified February 17 12:14 EST 2020. Contains 331996 sequences. (Running on oeis4.)