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A298319
Number of nX7 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 king-move adjacent elements, with upper left element zero.
1
21, 203, 94, 1086, 6236, 11175, 111137, 644056, 3190955, 27151266, 182045025, 1280285105, 10257252946, 75063403838, 571967578126, 4496402709938, 34098604190424, 264284131602151, 2063855052770201, 15872082370425994
OFFSET
1,1
COMMENTS
Column 7 of A298320.
LINKS
EXAMPLE
Some solutions for n=7
..0..1..1..1..1..0..1. .0..1..0..0..1..0..0. .0..1..0..1..0..1..0
..1..0..1..0..0..0..0. .1..0..0..0..0..0..0. .1..1..1..1..1..1..1
..1..1..1..1..1..1..0. .1..1..1..1..1..1..1. .0..1..0..1..0..1..0
..1..1..0..0..1..1..0. .1..0..0..1..0..1..1. .1..1..1..0..0..0..1
..0..0..0..0..0..0..0. .0..1..0..0..0..0..0. .1..1..1..1..0..1..1
..1..1..1..1..1..0..1. .1..1..1..0..0..0..0. .0..0..1..1..0..1..1
..0..0..1..0..1..1..0. .0..1..0..1..0..1..1. .0..0..0..0..0..0..0
CROSSREFS
Cf. A298320.
Sequence in context: A126542 A297906 A298500 * A299392 A299193 A300029
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 17 2018
STATUS
approved