A261758 Number of (n+1)X(5+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, 165, 138, 4797, 7014, 82711, 229036, 1430550, 5704715, 29016693

Offset

1,2

Comments

Column 5 of A261761.

Links

Table of n, a(n) for n=1..10.

Example

Some solutions for n=4
..1..0..1..0..1..1....0..0..0..0..1..1....0..0..1..1..0..1....0..1..1..1..1..1
..1..0..1..0..0..1....0..0..0..0..1..0....0..1..1..1..0..1....0..1..1..1..0..1
..1..0..1..0..1..1....0..0..1..0..1..1....0..1..1..1..1..1....0..1..1..1..1..1
..0..1..0..1..1..1....1..1..1..1..0..1....1..0..0..1..0..1....1..1..1..0..1..1
..1..0..1..0..1..1....0..1..1..1..1..1....0..1..1..1..1..1....0..1..1..1..1..1

Crossrefs

Cf. A261761.

Sequence in context: A289332 A300057 A197440 * A252725 A168355 A083255

Adjacent sequences: A261755 A261756 A261757 * A261759 A261760 A261761

Keyword

nonn

Author

R. H. Hardin, Aug 31 2015

Status

approved