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A301490 Number of nX7 0..1 arrays with every element equal to 0, 1, 2, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
64, 1063, 4326, 38558, 594953, 8479276, 116648010, 1642511178, 23269383762, 329448536106, 4665726402829, 66101420939287, 936656562909636, 13273745213136152, 188117185109334762, 2666089573263940480 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A301491.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0..0..0. .0..0..0..1..0..0..1. .0..1..0..1..0..1..1
..0..0..0..0..0..0..1. .1..1..1..1..0..1..0. .0..1..0..1..1..0..1
..0..0..0..0..1..0..1. .0..0..1..1..1..0..1. .0..1..0..0..0..0..0
..0..1..1..0..0..1..0. .1..0..1..1..1..0..1. .0..0..0..0..0..1..0
..1..0..1..1..1..0..1. .0..1..1..1..1..0..0. .1..0..1..1..0..1..1
CROSSREFS
Cf. A301491.
Sequence in context: A300497 A300936 A300880 * A223070 A191900 A191494
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 22 2018
STATUS
approved

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Last modified March 28 15:28 EDT 2024. Contains 371254 sequences. (Running on oeis4.)