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A002591 as a simple table

n a(n)
0 2
1 13
2 11
3 1093
4 757
5 3851
6 797161
7 4561
8 34511
9 363889
10 368089
11 1001523179
12 391151
13 8209
14 20381027
15 4404047
16 2413941289
17 2664097031
18 17189128703
19 797161
20 86950696619
21 380808546861411923
22 927001
23 96656723
24 131713
25 99810171997

[2,13,11,1093,757,3851,797161,4561,34511,363889,
 368089,1001523179,391151,8209,20381027,4404047,
 2413941289,2664097031,17189128703,797161,
 86950696619,380808546861411923,927001,96656723,
 131713,99810171997]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)