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A026976 formatted as a simple table:

n a(n)
0 1
1 2
2 6
3 34
4 116
5 438
6 1606
7 8732
8 32194
9 136010
10 514118
11 2728662
12 10331502
13 45631466
14 174779986
15 918698714
16 3522338416
17 15916323366
18 61429039906
19 321217490812

[1,2,6,34,116,438,1606,8732,32194,136010,514118,
 2728662,10331502,45631466,174779986,918698714,
 3522338416,15916323366,61429039906,321217490812]

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Last modified December 5 17:24 EST 2009. Contains 170342 sequences.


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