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A301826 Number of 5 X n 0..1 arrays with every element equal to 1 or 2 horizontally or antidiagonally adjacent elements, with upper left element zero. 1
0, 34, 16, 177, 1197, 6501, 47363, 284691, 1896274, 11958940, 77618802, 496896121, 3200790736, 20562842467, 132258652196, 850233622346, 5467032295429, 35149594609278, 226000413555323, 1453078724543374, 9342715834996198 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 5 of A301823.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..1..0. .0..0..0..1..1. .0..0..0..0..0. .0..0..0..1..1
..1..1..1..0..0. .1..1..1..0..0. .1..1..1..1..0. .1..1..1..0..0
..0..0..1..0..0. .0..0..0..1..1. .0..0..1..0..0. .0..0..1..1..0
..0..1..1..1..1. .1..1..0..0..0. .0..0..1..1..1. .0..0..1..0..1
..0..0..0..1..1. .1..1..1..1..1. .1..1..0..0..0. .0..0..0..1..1
CROSSREFS
Cf. A301823.
Sequence in context: A298258 A298929 A118497 * A033354 A033972 A298086
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 27 2018
STATUS
approved

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Last modified March 29 08:45 EDT 2024. Contains 371267 sequences. (Running on oeis4.)