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A006746 formatted as a simple table:

n a(n)
1 0
2 0
3 0
4 1
5 2
6 6
7 9
8 23
9 38
10 90
11 147
12 341
13 564
14 1294
15 2148
16 4896
17 8195
18 18612
19 31349
20 70983
21 120357
22 271921
23 463712
24 1045559
25 1792582
26 4034832
27 6950579
28 15619507

[0,0,0,1,2,6,9,23,38,90,147,341,564,1294,2148,
 4896,8195,18612,31349,70983,120357,271921,463712,
 1045559,1792582,4034832,6950579,15619507]

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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