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A089498
Duplicate of
A046729
.
0
0, 4, 20, 120, 696, 4060, 23660, 137904, 803760, 4684660, 27304196, 159140520
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OFFSET
0,2
LINKS
Table of n, a(n) for n=0..11.
Index entries for two-way infinite sequences
CROSSREFS
Sequence in context:
A208232
A013197
A319788
*
A046729
A277920
A093123
Adjacent sequences:
A089495
A089496
A089497
*
A089499
A089500
A089501
KEYWORD
dead
STATUS
approved
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Last modified April 16 05:35 EDT 2024. Contains 371697 sequences. (Running on oeis4.)
