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A219417
Unchanging value maps: number of n X n binary arrays indicating the locations of corresponding elements unequal to no horizontal or antidiagonal neighbor in a random 0..2 n X n array
0
1, 7, 93, 3617, 372560, 104434119, 80311501599, 170240798669115, 992546861505827096, 15854777538297903063593
OFFSET
1,2
COMMENTS
Diagonal of A219421
EXAMPLE
Some solutions for n=3
..1..1..0....0..0..0....1..1..0....0..0..1....0..0..0....0..0..1....0..0..0
..0..0..0....0..1..0....0..0..0....1..1..1....1..0..1....0..0..1....1..0..1
..1..0..1....0..0..1....0..1..1....1..0..0....1..1..1....1..0..0....0..0..0
CROSSREFS
Sequence in context: A346464 A197484 A218835 * A220405 A109304 A134113
KEYWORD
nonn
AUTHOR
R. H. Hardin Nov 19 2012
STATUS
approved