A297606 Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 1 or 3 neighboring 1s.

81, 2428, 80140, 2781983, 95770934, 3295502717, 113592447685, 3914150992637, 134873268392766, 4647632955334718, 160153138265121710, 5518725808864366911, 190170328735295352038, 6553097986714224724209, 225813842296458259011060

Offset

1,1

Comments

Column 7 of A297607.

Links

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

Example

Some solutions for n=3
..0..1..0..1..0..0..0. .1..0..0..0..1..0..0. .0..0..0..1..0..1..0
..0..0..0..0..0..0..0. .1..0..0..0..1..0..1. .0..1..0..1..0..1..1
..1..1..0..1..0..0..0. .0..0..1..0..1..0..0. .0..0..0..0..0..1..0

Crossrefs

Cf. A297607.

Sequence in context: A085877 A123219 A205512 * A236729 A236147 A237473

Adjacent sequences: A297603 A297604 A297605 * A297607 A297608 A297609

Keyword

nonn

Author

R. H. Hardin, Jan 01 2018

Status

approved