A000445
formatted as a simple table:
n
a(n)
2
9
3
77
4
1224
5
7888
6
202124
7
1649375
[9,77,1224,7888,202124,1649375]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 5 17:24 EST 2009. Contains 170342 sequences.
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