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A262911
Number of (n+1)X(n+1) 0..1 arrays with each row divisible by 3 and each column divisible by 7, read as a binary number with top and left being the most significant bits.
0
1, 3, 15, 137, 18190, 1550557, 1282949605
OFFSET
1,2
COMMENTS
Diagonal of A262917.
EXAMPLE
Some solutions for n=4
..0..1..0..0..1....1..0..0..1..0....0..0..0..0..0....0..1..1..0..0
..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..0
..0..1..1..1..1....1..1..1..1..0....0..1..1..1..1....0..1..1..0..0
..0..0..1..1..0....0..1..1..0..0....0..1..1..1..1....0..0..0..0..0
..0..1..1..1..1....1..1..1..1..0....0..1..1..1..1....0..1..1..0..0
CROSSREFS
Cf. A262917.
Sequence in context: A113723 A113379 A267018 * A163949 A005816 A179470
KEYWORD
nonn
AUTHOR
R. H. Hardin, Oct 04 2015
STATUS
approved