Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
A261757
Number of (n+1) X (4+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
11, 100, 99, 2673, 4797, 53564, 174125, 1264975, 5828759, 28376885
OFFSET
1,1
COMMENTS
Column 4 of A261761.
EXAMPLE
Some solutions for n=4
..0..1..0..1..1....1..0..0..0..1....0..1..1..0..1....1..0..0..1..1
..0..0..1..1..1....0..0..0..1..0....0..0..0..1..0....1..0..0..0..1
..0..0..0..1..1....1..1..1..0..1....0..0..1..0..1....1..1..1..1..1
..1..1..1..0..1....1..0..0..1..1....1..1..1..1..1....0..0..0..1..0
..1..1..1..1..1....1..1..1..1..1....1..1..1..1..1....1..1..1..1..1
CROSSREFS
Cf. A261761.
Sequence in context: A287461 A288402 A287984 * A280049 A066329 A309870
KEYWORD
nonn
AUTHOR
R. H. Hardin, Aug 31 2015
STATUS
approved