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A026072
a(n) = T(2n-1,n), where T is the array defined in
A024996
.
0
1, 3, 13, 76, 427, 2427, 13871, 79729, 460473, 2670394, 15540822, 90717305, 530946697, 3114680815, 18308774295, 107817336510, 635942014275, 3756423495198, 22217666030882, 131563775350068
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OFFSET
1,2
LINKS
Table of n, a(n) for n=1..20.
CROSSREFS
Sequence in context:
A305535
A300793
A222427
*
A063646
A047730
A162435
Adjacent sequences:
A026069
A026070
A026071
*
A026073
A026074
A026075
KEYWORD
nonn
AUTHOR
Clark Kimberling
STATUS
approved
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Last modified March 29 00:26 EDT 2024. Contains 371264 sequences. (Running on oeis4.)