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A064457 as a simple table

n a(n)
1 3
2 7
3 47
4 157
5 293
6 1807
7 8697
8 9447
9 15147
10 31497
11 74847
12 159111
13 1031187
14 1100457
15 1740087
16 3589707
17 8498937
18 10312173
19 15086925
20 51874335
21 54072205
22 746239895
23 1433920655

[3,7,47,157,293,1807,8697,9447,15147,31497,74847,
 159111,1031187,1100457,1740087,3589707,8498937,
 10312173,15086925,51874335,54072205,746239895,
 1433920655]

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Last modified September 21 07:28 EDT 2021. Contains 347596 sequences. (Running on oeis4.)