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A298393
Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 king-move adjacent elements, with upper left element zero.
1
3, 23, 63, 432, 2231, 13271, 81019, 454822, 2647771, 15705120, 91017707, 531809890, 3122451308, 18251243783, 106758611022, 625185452829, 3659138751517, 21414194993312, 125344300498672, 733690661655699, 4294342754282802
OFFSET
1,1
COMMENTS
Column 5 of A298396.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..0..1. .0..1..0..0..1. .0..1..0..0..1. .0..0..1..1..0
..0..1..1..1..0. .1..0..1..1..1. .0..1..1..1..0. .1..0..1..0..0
..1..1..1..1..1. .0..1..0..1..1. .0..1..1..1..1. .1..1..1..1..1
..1..1..0..0..0. .0..1..1..0..1. .0..1..0..0..0. .0..0..1..1..0
..1..0..1..1..1. .1..1..1..1..1. .1..0..1..1..1. .1..1..0..1..0
CROSSREFS
Cf. A298396.
Sequence in context: A254626 A362540 A262769 * A299511 A299311 A300112
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 18 2018
STATUS
approved