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A069437
Half the number of 11 X n binary arrays with no path of adjacent 1's or adjacent 0's from top row to bottom row.
0
1023, 2077552, 4174954460, 8318320069722
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Table of n, a(n) for n=1..4.
CROSSREFS
Cf. 2 X n A000079, n X 1 A000225, vertical path of 1 A069361-A069395, vertical paths of 0+1 A069396-A069416, vertical path of 1 not 0 A069417-A069428, no vertical paths A069429-A069447, no horizontal or vertical paths A069448-A069452.
Sequence in context: A022192 A069385 A069411 * A212934 A263168 A336779
Adjacent sequences: A069434 A069435 A069436 * A069438 A069439 A069440
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 22 2002
STATUS
approved

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Last modified October 25 19:26 EDT 2024. Contains 377104 sequences.
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