A113028
formatted as a simple table:
n
a(n)
2
1
3
2
4
54
5
108
6
152
7
16200
8
2042460
9
4416720
10
9867312
11
2334364200
12
421877610
13
1779700673520
[1,2,54,108,152,16200,2042460,4416720,9867312, 2334364200,421877610,1779700673520]
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified December 19 12:50 EST 2009. Contains 171053 sequences.
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