A066740
formatted as a simple table:
n
a(n)
0
1
1
1
2
2
3
5
4
13
5
44
6
151
7
614
8
2446
9
11066
10
53368
11
253927
12
1316375
13
7213979
[1,1,2,5,13,44,151,614,2446,11066,53368,253927, 1316375,7213979]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 30 13:13 EST 2009. Contains 167758 sequences.
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