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A297543
Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2 or 3 neighboring 1s.
1
1, 381, 4617, 65363, 2748026, 67372651, 1610981344, 45496070039, 1204223924807, 31395434922611, 839621841413395, 22297914534222936, 589873752024831225, 15663501392099069812, 415682851416335706284, 11022783242886075047889
OFFSET
1,2
COMMENTS
Column 7 of A297544.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..1..1..0..0. .0..0..0..1..1..1..0. .0..0..0..0..1..0..0
..0..0..0..0..1..1..0. .0..0..1..0..0..1..1. .0..0..0..1..0..1..0
..0..0..0..0..1..1..0. .0..0..1..1..0..0..0. .0..0..1..0..0..1..1
..0..1..0..0..0..1..0. .1..1..0..0..0..0..0. .1..1..1..0..1..1..1
..1..1..1..0..1..1..1. .0..1..1..0..0..0..0. .0..1..0..0..0..0..0
CROSSREFS
Cf. A297544.
Sequence in context: A035845 A028682 A222163 * A297801 A201800 A172848
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 31 2017
STATUS
approved