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A144241 formatted as a simple table:

n a(n)
1 1
2 2
3 1
4 3
5 2
6 4
7 4
8 13
9 10
10 65
11 30
12 231
13 168
14 1370
15 1317
16 17525
17 10846
18 191939
19 133498
20 2802218
21 2431795
22 73051050
23 54458173
24 2202863847
25 1575946900
26 84041510893
27 69906212126
28 5035951361562
29 4061748253676
30 385626222267420

[1,2,1,3,2,4,4,13,10,65,30,231,168,1370,1317,
 17525,10846,191939,133498,2802218,2431795,
 73051050,54458173,2202863847,1575946900,
 84041510893,69906212126,5035951361562,
 4061748253676,385626222267420]

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Last modified December 9 14:43 EST 2009. Contains 170430 sequences.


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