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A207082 Number of n X n 0..1 arrays avoiding 0 0 0 horizontally and 0 0 1 vertically 0
2, 16, 241, 10621, 1128580, 289951889, 189659424011, 309962689144609, 1271408331944150733, 13184774275002026128508, 345132526969505296701072063, 22839657048171631176301571722877, 3824685810041409132386645720304598864 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A207088

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A188756 A156495 A203418 * A207176 A217812 A217813

Adjacent sequences:  A207079 A207080 A207081 * A207083 A207084 A207085

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 15 2012

STATUS

approved

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Last modified June 28 17:31 EDT 2022. Contains 354907 sequences. (Running on oeis4.)