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A218844 Unmatched value maps: number of 3Xn binary arrays indicating the locations of corresponding elements not equal to any horizontal or antidiagonal neighbor in a random 0..1 3Xn array 1
1, 21, 93, 453, 2050, 9516, 44129, 204780, 950346, 4410194, 20465923, 94974721, 440743516, 2045330613, 9491634200, 44047218242, 204407115009, 948579057090, 4402010267626, 20428127976053, 94799509246526, 439930030199648 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 3 of A218842
LINKS
EXAMPLE
Some solutions for n=3
..1..0..1....0..0..1....0..0..1....1..0..0....1..1..1....1..0..0....1..0..1
..0..0..1....0..0..1....0..0..0....0..0..1....1..1..1....0..0..0....0..0..1
..0..0..1....0..0..1....0..0..0....1..1..1....1..0..0....0..1..1....0..0..0
CROSSREFS
Sequence in context: A254603 A144856 A065522 * A219423 A123213 A296822
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 07 2012
STATUS
approved

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Last modified June 16 19:52 EDT 2024. Contains 373432 sequences. (Running on oeis4.)