A280177 Number of nX5 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

3, 103, 1082, 8759, 63336, 421214, 2665301, 16203600, 95738359, 553426602, 3144390918, 17616571929, 97552223101, 534893931388, 2908144474219, 15695105501976, 84158923368105, 448686881821760, 2379904102120128

Offset

1,1

Comments

Column 5 of A280180.

Links

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

Example

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

Crossrefs

Cf. A280180.

Sequence in context: A323036 A101780 A197632 * A241348 A050651 A233251

Adjacent sequences: A280174 A280175 A280176 * A280178 A280179 A280180

Keyword

nonn

Author

R. H. Hardin, Dec 28 2016

Status

approved