A112880
formatted as a simple table:
n
a(n)
1
12
2
18
3
492
4
702
5
2310
6
2370
7
130650
8
980910
9
5528418
10
21357012
[12,18,492,702,2310,2370,130650,980910,5528418, 21357012]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 1 13:27 EST 2009. Contains 167806 sequences.
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