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A124861 formatted as a simple table:

n a(n)
0 1
1 1
2 4
3 11
4 29
5 80
6 219
7 597
8 1632
9 4459
10 12181
11 33280
12 90923
13 248405
14 678656
15 1854123
16 5065557
17 13839360
18 37809835
19 103298389
20 282216448
21 771029675
22 2106492245
23 5755043840
24 15723072171
25 42956232021
26 117358608384

[1,1,4,11,29,80,219,597,1632,4459,12181,33280,
 90923,248405,678656,1854123,5065557,13839360,
 37809835,103298389,282216448,771029675,2106492245,
 5755043840,15723072171,42956232021,117358608384]

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.


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