A239185 Number of (7+1)X(n+1) 0..2 arrays with no element greater than all horizontal neighbors or equal to all vertical neighbors

1968, 1321986, 381984614, 119751372066, 44086966064930, 16126266923705212, 5817146886160257060, 2095254565928697307720, 755629982088203538445028, 272567770522954354280836610

Offset

1,1

Comments

Row 7 of A239178

Links

Table of n, a(n) for n=1..10.

Example

Some solutions for n=1
..1..1....0..0....1..1....0..0....1..1....0..0....1..1....0..0....2..2....2..2
..2..2....2..2....2..2....1..1....2..2....1..1....0..0....1..1....0..0....0..0
..1..1....0..0....1..1....2..2....0..0....1..1....1..1....2..2....1..1....0..0
..0..0....1..1....1..1....0..0....1..1....2..2....1..1....1..1....1..1....2..2
..2..2....1..1....2..2....0..0....2..2....1..1....2..2....2..2....2..2....1..1
..2..2....2..2....1..1....2..2....2..2....0..0....0..0....0..0....0..0....2..2
..0..0....2..2....2..2....2..2....0..0....1..1....1..1....2..2....0..0....0..0
..2..2....0..0....1..1....1..1....2..2....2..2....0..0....1..1....2..2....1..1

Crossrefs

Sequence in context: A251023 A193312 A202596 * A289561 A256738 A252012

Adjacent sequences: A239182 A239183 A239184 * A239186 A239187 A239188

Keyword

nonn

Author

R. H. Hardin, Mar 11 2014

Status

approved