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A072977 formatted as a simple table:

n a(n)
1 1
2 4
3 20
4 39
5 94
6 636
7 699
8 716
9 904
10 1374
11 1824
12 2457
13 24007
14 32164
15 170306
16 179545
17 198107
18 463343
19 579913
20 910774
21 3758763

[1,4,20,39,94,636,699,716,904,1374,1824,2457,
 24007,32164,170306,179545,198107,463343,579913,
 910774,3758763]

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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