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A055824 formatted as a simple table:

n a(n)
0 1
1 2
2 9
3 43
4 217
5 1131
6 6017
7 32467
8 177009
9 972691
10 5378425
11 29889531
12 166795977
13 934039419
14 5246059761
15 29540072355
16 166708076001
17 942651407907
18 5339465635049
19 30291114653131
20 172081678284729
21 978807205953931

[1,2,9,43,217,1131,6017,32467,177009,972691,
 5378425,29889531,166795977,934039419,5246059761,
 29540072355,166708076001,942651407907,
 5339465635049,30291114653131,172081678284729,
 978807205953931]

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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.


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