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A001207 formatted as a simple table:

n a(n)
1 1
2 3
3 11
4 44
5 186
6 814
7 3652
8 16689
9 77359
10 362671
11 1716033
12 8182213
13 39267086
14 189492795
15 918837374
16 4474080844
17 21866153748
18 107217298977
19 527266673134
20 2599804551168
21 12849503756579
22 63646233127758
23 315876691291677
24 1570540515980274
25 7821755377244303
26 39014584984477092
27 194880246951838595
28 974725768600891269
29 4881251640514912341
30 24472502362094874818
31 122826412768568196148
32 617080993446201431307
33 3103152024451536273288
34 15618892303340118758816
35 78679501136505611375745

[1,3,11,44,186,814,3652,16689,77359,362671,
 1716033,8182213,39267086,189492795,918837374,
 4474080844,21866153748,107217298977,527266673134,
 2599804551168,12849503756579,63646233127758,
 315876691291677,1570540515980274,7821755377244303,
 39014584984477092,194880246951838595,
 974725768600891269,4881251640514912341,
 24472502362094874818,122826412768568196148,
 617080993446201431307,3103152024451536273288,
 15618892303340118758816,78679501136505611375745]

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.


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