login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A219979
Unmatched value maps: number of n X n binary arrays indicating the locations of corresponding elements not equal to any horizontal, vertical or antidiagonal neighbor in a random 0..3 n X n array
0
1, 11, 316, 34212, 14960307, 25862914118
OFFSET
1,2
COMMENTS
Diagonal of A219985
EXAMPLE
Some solutions for n=3
..1..1..1....1..0..0....1..0..0....1..0..1....0..0..1....0..0..1....0..1..1
..0..0..0....0..0..0....0..0..1....1..0..1....1..0..0....1..0..1....0..0..0
..1..1..1....0..1..0....0..0..1....1..0..1....0..0..1....1..0..1....0..1..1
CROSSREFS
Sequence in context: A276977 A176285 A266484 * A115609 A166053 A200749
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 02 2012
STATUS
approved