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A193374 as a simple table

n a(n)
0 1
1 1
2 1
3 3
4 9
5 21
6 201
7 1191
8 4593
9 36009
10 620721
11 5297931
12 40360761
13 474989373
14 4345942329
15 122776895151
16 2118941145441
17 21344580276561
18 303071564084193
19 4476037678611219
20 59935820004483561
21 3838519441659950181
22 78361805638079449641
23 949279542954821272503

[1,1,1,3,9,21,201,1191,4593,36009,620721,5297931,
 40360761,474989373,4345942329,122776895151,
 2118941145441,21344580276561,303071564084193,
 4476037678611219,59935820004483561,
 3838519441659950181,78361805638079449641,
 949279542954821272503]

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Last modified January 22 18:28 EST 2019. Contains 319365 sequences. (Running on oeis4.)