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A069394
Number of n X 19 binary arrays with a path of adjacent 1's from top row to bottom row.
0
524287, 273715645477, 138901692341235797, 67364511379527907595537
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..4.
CROSSREFS
Cf. 1 X n
A000225
, 2 X n
A005061
, n X 2
A001333
, 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:
A075974
A011569
A022535
*
A289480
A222530
A069280
Adjacent sequences:
A069391
A069392
A069393
*
A069395
A069396
A069397
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Mar 22 2002
STATUS
approved
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Last modified August 14 18:32 EDT 2024. Contains 375166 sequences. (Running on oeis4.)