A231522 Number of n X 7 0..1 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors.

37, 3381, 144847, 6935963, 322599407, 14940780666, 697702378939, 32529760276112, 1514885617016157, 70592106166184098, 3289771313716069793, 153290011597603312050, 7142830857947956340314, 332840754623625070614641

Offset

1,1

Comments

Column 7 of A231523.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=3
..0..0..0..0..1..0..0....0..0..0..1..1..0..0....0..1..0..1..1..0..0
..0..0..0..0..0..0..0....1..1..0..0..0..0..0....0..0..0..0..0..1..1
..0..0..0..1..1..0..0....1..1..1..0..0..1..1....1..0..0..1..1..0..0

Crossrefs

Cf. A231523.

Sequence in context: A218822 A220385 A074992 * A030095 A334259 A139043

Adjacent sequences: A231519 A231520 A231521 * A231523 A231524 A231525

Keyword

nonn

Author

R. H. Hardin, Nov 10 2013

Status

approved