A131552
formatted as a simple table:
n
a(n)
1
4
2
19
3
93
4
334
5
841
6
3404
7
7271
8
7720
9
44152
10
406774
[4,19,93,334,841,3404,7271,7720,44152,406774]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 7 08:40 EST 2009. Contains 170430 sequences.
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