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A069424
Number of n X 4 binary arrays with a path of adjacent 1's and no path of adjacent 0's from top row to bottom row.
0
1, 65, 1231, 17339, 217253, 2575297, 29682643, 337104939
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OFFSET
1,2
LINKS
Table of n, a(n) for n=1..8.
CROSSREFS
Cf. 2 X n
A001047
, n X 2
A034182
, 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:
A086021
A168029
A219413
*
A264268
A086029
A221038
Adjacent sequences:
A069421
A069422
A069423
*
A069425
A069426
A069427
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Mar 22 2002
STATUS
approved
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Last modified May 16 15:32 EDT 2024. Contains 372554 sequences. (Running on oeis4.)