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A298658 Number of nX6 0..1 arrays with every element equal to 1, 2, 4, 6 or 7 king-move adjacent elements, with upper left element zero. 1
5, 49, 34, 173, 431, 1116, 2562, 6711, 17405, 48462, 125671, 334571, 901387, 2398458, 6398293, 17158639, 45911441, 122885609, 329214517, 881849126, 2361859125, 6328533398, 16955926709, 45429854362, 121730159805, 326179436515 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A298660.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..0..1..1. .0..1..0..1..1..0. .0..1..1..1..1..0. .0..1..0..0..1..0
..1..0..0..0..0..0. .1..0..1..0..0..1. .0..0..1..1..0..0. .1..0..1..1..1..0
..0..0..0..1..0..1. .1..0..0..0..1..0. .0..0..1..1..1..1. .0..0..1..1..1..0
..0..0..0..1..1..0. .1..0..0..0..0..1. .1..0..1..0..1..0. .0..0..1..0..1..0
..0..1..1..0..1..0. .1..0..1..1..1..0. .1..0..0..0..1..0. .0..1..1..0..1..1
CROSSREFS
Cf. A298660.
Sequence in context: A298091 A298053 A298886 * A299610 A079837 A297957
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 24 2018
STATUS
approved

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Last modified March 28 17:25 EDT 2024. Contains 371254 sequences. (Running on oeis4.)