A004168
formatted as a simple table:
n
a(n)
0
3
1
12
2
156
3
24492
4
599882556
5
359859081592975692
6
129498558604939936868397356895854556
[3,12,156,24492,599882556,359859081592975692, 129498558604939936868397356895854556]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 10 12:37 EST 2009. Contains 170569 sequences.
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