A240788 Number of 7 X n 0..1 arrays with no element equal to fewer vertical neighbors than horizontal neighbors, with new values 0..1 introduced in row major order.

64, 1172, 10442, 108509, 1120383, 11677893, 121621207, 1269199948, 13241129190, 138189786444, 1442192128751, 15051954215634, 157096056362548, 1639615077341580, 17112720660101420, 178606392701182664

Offset

1,1

Comments

Row 7 of A240783.

Links

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

Example

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

Crossrefs

Cf. A240783.

Sequence in context: A081102 A250171 A128987 * A240294 A226086 A017031

Adjacent sequences: A240785 A240786 A240787 * A240789 A240790 A240791

Keyword

nonn

Author

R. H. Hardin, Apr 12 2014

Status

approved