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A259794 as a simple table

n a(n)
0 1
1 1
2 2
3 9
4 88
5 1104
6 15772
7 241582
8 3869852
9 63689650
10 1065023018
11 17948615155
12 303219868652
13 5116273886322
14 86004191773864
15 1437703756689091
16 23869446608034827
17 393225674878151704
18 6423761195925513669
19 104014146020398166139
20 1668870762057827073994

[1,1,2,9,88,1104,15772,241582,3869852,63689650,
 1065023018,17948615155,303219868652,5116273886322,
 86004191773864,1437703756689091,23869446608034827,
 393225674878151704,6423761195925513669,
 104014146020398166139,1668870762057827073994]

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Last modified August 4 00:29 EDT 2021. Contains 346441 sequences. (Running on oeis4.)