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A141842 formatted as a simple table:

n a(n)
1 18
2 86
3 680
4 835
5 7087
6 12788
7 18478
8 128117
9 385732
10 2206280
11 13176873
12 33185141
13 68388408
14 335213686
15 1365888758

[18,86,680,835,7087,12788,18478,128117,385732,
 2206280,13176873,33185141,68388408,335213686,
 1365888758]

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Last modified December 5 17:24 EST 2009. Contains 170342 sequences.


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