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A069369
Number of 11 X n binary arrays with a path of adjacent 1's from top row to bottom row.
0
1, 19601, 120070149, 478623939553, 1545323639404349, 4423369428678533705, 11738064445690843712709, 29601436900513534956486417, 72007238386097441302774324845, 170577316159214009818521435822905, 396017759826921556057184566557279157
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OFFSET
1,2
LINKS
Table of n, a(n) for n=1..11.
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:
A319062
A344829
A221333
*
A156721
A174760
A115472
Adjacent sequences:
A069366
A069367
A069368
*
A069370
A069371
A069372
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Mar 22 2002
EXTENSIONS
a(6)-a(11) from
Sean A. Irvine
, Apr 30 2024
STATUS
approved
