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A091139 as a simple table

n a(n)
0 1
1 1
2 2
3 5
4 16
5 66
6 346
7 2229
8 17000
9 148898
10 1465364
11 15957314
12 190158712
13 2459041744
14 34278016954
15 512253587397
16 8168812190472
17 138450960309882

[1,1,2,5,16,66,346,2229,17000,148898,1465364,
 15957314,190158712,2459041744,34278016954,
 512253587397,8168812190472,138450960309882]

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Last modified August 5 14:11 EDT 2024. Contains 374950 sequences. (Running on oeis4.)