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A261753 Number of (n+1)X(n+1) 0..1 arrays with each row and column prime, read as a binary number with top and left being the most significant bits. 0
2, 20, 19, 2673, 7014, 8124875, 78901198 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A261761.
LINKS
EXAMPLE
Some solutions for n=4
..0..0..0..1..1....1..1..1..0..1....0..1..0..1..1....0..0..0..1..1
..0..0..0..1..0....0..1..1..0..1....0..0..1..1..1....0..0..0..1..0
..1..0..0..1..1....0..1..1..0..1....0..0..1..1..1....1..1..1..1..1
..1..1..1..0..1....0..0..0..1..1....1..0..0..1..1....1..0..1..1..1
..1..0..1..1..1....1..1..1..1..1....1..1..1..1..1....1..1..1..1..1
CROSSREFS
Cf. A261761.
Sequence in context: A343927 A221921 A012739 * A075031 A273466 A278938
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 31 2015
STATUS
approved

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Last modified July 23 19:43 EDT 2024. Contains 374553 sequences. (Running on oeis4.)