A261760 - OEIS

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A261760

Number of (n+1)X(7+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, 885, 380, 174125, 229036, 25084172, 78901198

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Column 7 of A261761.

LINKS

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

EXAMPLE

Some solutions for n=4

..0..0..1..0..0..1..0..1....0..0..1..0..0..1..0..1....0..1..0..0..1..0..0..1

..0..1..1..0..1..1..0..1....0..1..0..0..0..0..1..1....0..0..0..1..0..0..0..1

..1..0..1..0..0..1..1..1....1..0..0..0..1..0..0..1....0..1..0..1..0..0..1..1

..0..1..0..1..1..0..0..1....0..1..0..1..0..0..1..1....1..1..1..0..1..1..1..1

..1..1..1..0..1..1..1..1....1..1..1..0..1..1..1..1....1..1..0..1..1..1..1..1

CROSSREFS

Cf. A261761.

Sequence in context: A282156 A318200 A295443 * A031794 A020393 A103811

Adjacent sequences: A261757 A261758 A261759 * A261761 A261762 A261763

KEYWORD

nonn

AUTHOR

R. H. Hardin, Aug 31 2015

STATUS

approved