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A304673 Number of n X 5 0..1 arrays with every element unequal to 0, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero. 1
1, 26, 45, 199, 897, 3525, 15544, 68896, 310438, 1387613, 6186243, 27785689, 124415835, 557130770, 2496620845, 11189240404, 50135564778, 224656450818, 1006809534133, 4511766370308, 20218498784795, 90607032838312 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 5 of A304676.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..1..0. .0..1..1..0..0. .0..1..1..0..0. .0..0..0..1..1
..1..1..0..0..1. .0..1..1..0..0. .1..0..1..0..0. .1..1..1..0..0
..1..0..1..0..1. .0..1..1..0..0. .0..1..1..1..1. .0..1..0..0..0
..1..0..1..0..1. .0..1..1..0..0. .1..0..1..1..1. .1..1..1..0..0
..0..1..0..0..1. .0..1..1..0..0. .0..1..0..0..0. .0..0..0..1..1
CROSSREFS
Cf. A304676.
Sequence in context: A178100 A357569 A255988 * A039458 A291672 A159651
KEYWORD
nonn
AUTHOR
R. H. Hardin, May 16 2018
STATUS
approved

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Last modified June 22 23:47 EDT 2024. Contains 373629 sequences. (Running on oeis4.)