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A115428 formatted as a simple table:

n a(n)
1 1
2 4
3 20
4 31
5 14564
6 38239
7 69919
8 120395
9 426436
10 902596
11 7478020
12 9090220
13 6671332084
14 8114264059
15 8482227259
16 9900250996
17 2244338786836
18 2490577152964
19 2509440638591
20 2769448208395
21 7012067592220

[1,4,20,31,14564,38239,69919,120395,426436,902596,
 7478020,9090220,6671332084,8114264059,8482227259,
 9900250996,2244338786836,2490577152964,
 2509440638591,2769448208395,7012067592220]

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.


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