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A121404
A093483
(n)-2.
1
0, 2, 6, 12, 36, 96, 342, 22266, 79806, 187122, 347976, 2171616, 4219797672, 98059918332
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OFFSET
1,2
LINKS
Table of n, a(n) for n=1..14.
CROSSREFS
Sequence in context:
A307015
A026549
A120766
*
A202337
A189854
A189565
Adjacent sequences:
A121401
A121402
A121403
*
A121405
A121406
A121407
KEYWORD
nonn
AUTHOR
N. J. A. Sloane
, Apr 21 2007
STATUS
approved
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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)