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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
1
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
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 12 2013
STATUS
approved