A296577 Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 0, 1 or 3 neighboring 1s.

81, 2078, 56646, 1680927, 48217515, 1394258872, 40337678992, 1165868818808, 33712843195488, 974745141163546, 28183526319905715, 814890160500244088, 23561459156605227616, 681248846708899731070, 19697413225479825722690

Offset

1,1

Comments

Column 7 of A296578.

Links

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

Example

Some solutions for n=5
..0..0..0..1..0..0..0. .0..0..0..1..0..0..1. .0..0..0..0..1..0..0
..0..0..0..0..0..0..1. .0..0..0..0..0..0..0. .0..0..0..0..0..0..1
..0..0..0..0..0..0..1. .0..0..0..1..0..0..1. .0..0..0..0..0..0..1
..0..0..1..0..0..1..1. .0..0..1..0..1..1..0. .0..0..0..0..0..0..0
..0..0..1..0..1..0..1. .0..0..0..0..0..1..0. .0..0..1..0..0..1..1

Crossrefs

Cf. A296578.

Sequence in context: A350870 A282861 A237376 * A237316 A237722 A250436

Adjacent sequences: A296574 A296575 A296576 * A296578 A296579 A296580

Keyword

nonn

Author

R. H. Hardin, Dec 15 2017

Status

approved