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A207515 Number of n X n 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 0 and 1 0 1 vertically 1
2, 16, 98, 1307, 29622, 1048423, 54373655, 4964342828, 715483286848, 161734351034666, 59741686819322041, 35917251659399987384, 34508253720326500890077, 53717705561862882229716065 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A207519

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..16

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A207934 A207780 A207461 * A207913 A208694 A319603

Adjacent sequences:  A207512 A207513 A207514 * A207516 A207517 A207518

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 18 2012

STATUS

approved

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Last modified October 7 10:36 EDT 2022. Contains 357270 sequences. (Running on oeis4.)