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A075870 formatted as a simple table:

n a(n)
1 2
2 10
3 58
4 338
5 1970
6 11482
7 66922
8 390050
9 2273378
10 13250218
11 77227930
12 450117362
13 2623476242
14 15290740090
15 89120964298
16 519435045698
17 3027489309890
18 17645500813642
19 102845515571962
20 599427592618130

[2,10,58,338,1970,11482,66922,390050,2273378,
 13250218,77227930,450117362,2623476242,
 15290740090,89120964298,519435045698,
 3027489309890,17645500813642,102845515571962,
 599427592618130]

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


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