A231705 Number of (n+1)X(3+1) 0..1 arrays with no element having a strict majority of its horizontal, vertical and antidiagonal neighbors equal to one

42, 387, 2840, 23584, 197605, 1601683, 13087828, 107398293, 878894477, 7193285719, 58898156726, 482180316552, 3947375486172, 32316205361007, 264563453161915, 2165898853276949, 17731567206469017, 145163047328289678

Offset

1,1

Comments

Column 3 of A231710

Links

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

R. H. Hardin, Empirical recurrence of order 77

Formula

Empirical recurrence of order 77 (see link above)

Example

Some solutions for n=5
..0..1..0..0....0..0..0..0....0..0..1..0....0..1..0..0....0..0..0..0
..0..0..0..0....1..1..0..1....0..1..0..0....0..0..1..0....1..1..0..0
..0..0..0..0....0..0..0..0....1..0..0..0....0..0..0..0....0..0..0..0
..1..0..1..0....0..0..0..1....0..0..0..0....1..0..1..0....0..1..0..0
..0..0..0..0....1..0..0..0....0..0..0..0....1..0..0..1....0..0..1..0
..0..1..0..0....0..0..1..0....0..0..0..0....0..0..0..1....0..1..0..0

Crossrefs

Sequence in context: A091082 A189496 A064302 * A224455 A114928 A364943

Adjacent sequences: A231702 A231703 A231704 * A231706 A231707 A231708

Keyword

nonn

Author

R. H. Hardin, Nov 12 2013

Status

approved