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A025236
Duplicate of
A014432
.
0
1, 3, 3, 12, 30, 111, 363, 1353, 4917, 18777, 71769, 280506, 1103556, 4395009, 17622309
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OFFSET
1,2
LINKS
Table of n, a(n) for n=1..15.
CROSSREFS
Sequence in context:
A161804
A097342
A370145
*
A014432
A107330
A076509
Adjacent sequences:
A025233
A025234
A025235
*
A025237
A025238
A025239
KEYWORD
dead
STATUS
approved
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Last modified April 24 05:44 EDT 2024. Contains 371918 sequences. (Running on oeis4.)