A261759 Number of (n+1) X (6+1) 0..1 arrays with each row and column prime, read as a binary number with top and left being the most significant bits.

31, 353, 197, 53564, 82711, 8124875, 25084172

Offset

1,1

Comments

Column 6 of A261761.

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Cf. A261761.

Sequence in context: A274180 A197644 A295211 * A156150 A125419 A138440

Adjacent sequences: A261756 A261757 A261758 * A261760 A261761 A261762

Keyword

nonn

Author

R. H. Hardin, Aug 31 2015

Status

approved