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A028814 formatted as a simple table:

n a(n)
0 1
1 5
2 20
3 78
4 307
5 1219
6 4862
7 19428
8 77685
9 310705
10 1242776
11 4971050
12 19884135
13 79536463
14 318145762
15 1272582944
16 5090331657
17 20361326493
18 81445305820
19 325781223110
20 1303124892251
21 5212499568795
22 20849998274950

[1,5,20,78,307,1219,4862,19428,77685,310705,
 1242776,4971050,19884135,79536463,318145762,
 1272582944,5090331657,20361326493,81445305820,
 325781223110,1303124892251,5212499568795,
 20849998274950]

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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