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A085481
Duplicate of
A030195
.
0
1, 3, 12, 45, 171, 648, 2457, 9315, 35316, 133893, 507627, 1924560, 7296561
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OFFSET
1,2
LINKS
Table of n, a(n) for n=1..13.
CROSSREFS
Sequence in context:
A062561
A128593
A359813
*
A030195
A114515
A192467
Adjacent sequences:
A085478
A085479
A085480
*
A085482
A085483
A085484
KEYWORD
dead
STATUS
approved
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Last modified March 18 22:56 EDT 2024. Contains 370952 sequences. (Running on oeis4.)