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A069439
Half the number of 13 X n binary arrays with no path of adjacent 1's or adjacent 0's from top row to bottom row.
0
4095, 33440190, 271523097884, 2192221953687972
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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:
A069387
A359085
A069413
*
A212935
A076154
A182685
Adjacent sequences:
A069436
A069437
A069438
*
A069440
A069441
A069442
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Mar 22 2002
STATUS
approved
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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)