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A123458
Duplicate of
A048194
.
0
1, 2, 4, 9, 21, 56, 164, 557, 2223, 10766
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OFFSET
1,2
LINKS
Table of n, a(n) for n=1..10.
CROSSREFS
Sequence in context:
A287694
A148074
A130866
*
A048194
A148075
A351364
Adjacent sequences:
A123455
A123456
A123457
*
A123459
A123460
A123461
KEYWORD
dead
STATUS
approved
