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A000395 formatted as a simple table:

n a(n)
6 1
7 6
8 27
9 104
10 369
11 1236
12 3989
13 12522
14 38535
15 116808
16 350064
17 1039896
18 3068145
19 9004182
20 26314773
21 76652582
22 222705603
23 645731148
24 1869303857
25 5404655358
26 15611296146
27 45060069406
28 129989169909
29 374843799786
30 1080624405287

[1,6,27,104,369,1236,3989,12522,38535,116808,
 350064,1039896,3068145,9004182,26314773,76652582,
 222705603,645731148,1869303857,5404655358,
 15611296146,45060069406,129989169909,374843799786,
 1080624405287]

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.


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