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A206865 Number of n X n 0..1 arrays avoiding 0 0 0 horizontally and 1 0 1 vertically 0
2, 16, 211, 7675, 728935, 159327093, 90497940567, 125050630010443, 420541855354109634, 3548467633453651525361, 73505549006944543732634211, 3751209136697289848938709033475 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A206871
LINKS
EXAMPLE
Some solutions for n=4
..1..0..0..1....0..1..1..0....1..1..0..0....0..0..1..0....0..1..0..0
..1..1..0..0....1..1..0..0....0..1..1..1....0..0..1..0....1..0..1..1
..1..0..1..0....0..1..0..0....0..1..0..1....1..1..0..0....1..0..0..1
..1..0..0..1....0..1..1..0....1..1..0..1....1..1..0..0....1..0..0..1
CROSSREFS
Sequence in context: A004121 A188600 A206930 * A349313 A364399 A365568
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 13 2012
STATUS
approved

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Last modified March 29 10:22 EDT 2024. Contains 371268 sequences. (Running on oeis4.)