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A141761 as a simple table

n a(n)
0 1
1 1
2 1
3 2
4 6
5 26
6 154
7 1188
8 11474
9 134432
10 1863168
11 29936846
12 548625820
13 11315025894
14 259733293774
15 6574304470320
16 182050022755386
17 5477819548007438
18 178054691097463354
19 6220193033111607018

[1,1,1,2,6,26,154,1188,11474,134432,1863168,
 29936846,548625820,11315025894,259733293774,
 6574304470320,182050022755386,5477819548007438,
 178054691097463354,6220193033111607018]

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Last modified March 30 09:41 EDT 2020. Contains 333125 sequences. (Running on oeis4.)