A001574
formatted as a simple table:
n
a(n)
1
0
2
2
3
12
4
60
5
292
6
1438
7
7180
8
36566
[0,2,12,60,292,1438,7180,36566]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 17 13:29 EST 2009. Contains 170826 sequences.
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