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A272972 Number of nX7 0..1 arrays with exactly n+7-2 having value 1 and no three 1s forming an isosceles triangle. 0
7, 18, 23, 8, 10, 4, 4, 4, 2, 48, 24 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A272973.
LINKS
EXAMPLE
Some solutions for n=3
..1..0..0..0..0..1..0. .1..1..1..1..1..1..0. .0..1..0..0..0..0..1
..1..0..0..0..0..1..0. .0..0..0..0..0..0..1. .0..1..0..0..0..0..1
..0..1..1..1..0..0..1. .0..0..0..0..0..0..1. .1..0..0..1..1..1..0
CROSSREFS
Cf. A272973.
Sequence in context: A223247 A091832 A256011 * A070609 A007236 A056021
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 11 2016
STATUS
approved

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Last modified March 29 03:41 EDT 2024. Contains 371264 sequences. (Running on oeis4.)