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A083421 formatted as a simple table:

n a(n)
0 1
1 8
2 46
3 242
4 1234
5 6218
6 31186
7 156122
8 780994
9 3905738
10 19530226
11 97654202
12 488277154
13 2441398058
14 12207014866
15 61035123482
16 305175715714
17 1525878775178
18 7629394269106
19 38146972131962
20 190734862232674

[1,8,46,242,1234,6218,31186,156122,780994,3905738,
 19530226,97654202,488277154,2441398058,
 12207014866,61035123482,305175715714,
 1525878775178,7629394269106,38146972131962,
 190734862232674]

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Last modified December 6 11:04 EST 2009. Contains 170427 sequences.


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