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A143281 formatted as a simple table:

n a(n)
0 0
1 0
2 0
3 1
4 2
5 4
6 8
7 15
8 27
9 48
10 84
11 145
12 248
13 421
14 710
15 1191
16 1989
17 3309
18 5487
19 9073
20 14966
21 24634
22 40472
23 66384
24 108729
25 177858
26 290610
27 474364
28 773615
29 1260643
30 2052818
31 3340662
32 5433345
33 8832432
34 14351403
35 23309326
36 37844645
37 61423513

[0,0,0,1,2,4,8,15,27,48,84,145,248,421,710,1191,
 1989,3309,5487,9073,14966,24634,40472,66384,
 108729,177858,290610,474364,773615,1260643,
 2052818,3340662,5433345,8832432,14351403,23309326,
 37844645,61423513]

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Last modified December 16 13:01 EST 2009. Contains 170825 sequences.


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