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A069446
Half the number of n X 8 binary arrays with no path of adjacent 1's or adjacent 0's from top row to bottom row.
0
128, 330752, 276246170, 138031237058
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OFFSET
2,1
LINKS
Table of n, a(n) for n=2..5.
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:
A016831
A103348
A334669
*
A227605
A016879
A227661
Adjacent sequences:
A069443
A069444
A069445
*
A069447
A069448
A069449
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Mar 22 2002
STATUS
approved
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Last modified April 25 07:41 EDT 2024. Contains 371964 sequences. (Running on oeis4.)