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A121497 formatted as a simple table:

n a(n)
1 0
2 1
3 4
4 10
5 21
6 41
7 78
8 148
9 282
10 537
11 1013
12 1882
13 3446
14 6267
15 11468
16 21416
17 41209
18 81771
19 166042
20 340994
21 700570
22 1429375
23 2886777
24 5771828
25 11453105
26 22638215
27 44742141
28 88681674
29 176545766
30 352992931
31 707922077
32 1421120880
33 2849433326

[0,1,4,10,21,41,78,148,282,537,1013,1882,3446,
 6267,11468,21416,41209,81771,166042,340994,700570,
 1429375,2886777,5771828,11453105,22638215,
 44742141,88681674,176545766,352992931,707922077,
 1421120880,2849433326]

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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.


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