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A298885 Number of nX5 0..1 arrays with every element equal to 1, 2, 4, 6 or 8 king-move adjacent elements, with upper left element zero. 1
3, 23, 23, 73, 123, 243, 444, 897, 1801, 3462, 6669, 13291, 25762, 49483, 97860, 193033, 376031, 735990, 1440269, 2815283, 5522803, 10827092, 21196028, 41505035, 81298779, 159266998, 311969014, 611140770, 1197086348, 2345047342, 4593936013 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A298888.
LINKS
EXAMPLE
Some solutions for n=7
..0..1..0..0..1. .0..0..0..1..0. .0..0..0..1..0. .0..1..1..0..1
..0..1..1..1..0. .1..1..1..0..0. .1..1..1..1..0. .1..0..0..0..1
..0..1..1..1..0. .0..0..0..0..0. .0..1..1..1..0. .1..0..0..0..1
..1..1..1..1..1. .1..0..0..0..1. .0..1..1..1..1. .0..0..0..0..0
..0..0..0..1..1. .1..0..0..0..1. .1..0..0..1..1. .1..1..1..0..0
..1..1..1..1..0. .1..0..1..1..0. .0..0..1..1..0. .0..0..0..0..1
..0..0..0..1..0. .0..0..1..0..1. .1..1..0..1..0. .1..1..1..0..1
CROSSREFS
Cf. A298888.
Sequence in context: A297855 A298090 A298052 * A298657 A299609 A238198
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 28 2018
STATUS
approved

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Last modified March 4 01:40 EST 2024. Contains 370522 sequences. (Running on oeis4.)