A240648 Number of nX7 0..1 arrays with no element equal to the same number of vertical neighbors as horizontal neighbors, with new values 0..1 introduced in row major order

8, 21, 149, 526, 4343, 29481, 227270, 1748201, 14230080, 116070258, 970291863, 8167942037, 69515482202, 595126853497, 5123195518181, 44273991533826, 383829145390407, 3335510350046976, 29039638981754848, 253185283934243073

Offset

1,1

Comments

Column 7 of A240649

Links

R. H. Hardin, Table of n, a(n) for n = 1..169

Example

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

Crossrefs

Sequence in context: A220580 A100903 A358720 * A231525 A228756 A228504

Adjacent sequences: A240645 A240646 A240647 * A240649 A240650 A240651

Keyword

nonn

Author

R. H. Hardin, Apr 09 2014

Status

approved