A117644
formatted as a simple table:
n
a(n)
0
4
1
45
2
369
3
2961
4
23697
5
189585
6
1516689
[4,45,369,2961,23697,189585,1516689]
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Maintained by
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(
njas@research.att.com
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Last modified December 4 08:07 EST 2009. Contains 170310 sequences.
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