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A212722 as a simple table

n a(n)
0 1
1 1
2 3
3 25
4 313
5 5341
6 115651
7 3036517
8 93767185
9 3330162073
10 133737097411
11 5992748728561
12 296433923379529
13 16044427276953973
14 943207466055927619
15 59848531677741706621
16 4076826825898115406241
17 296742863575079244130225

[1,1,3,25,313,5341,115651,3036517,93767185,
 3330162073,133737097411,5992748728561,
 296433923379529,16044427276953973,
 943207466055927619,59848531677741706621,
 4076826825898115406241,296742863575079244130225]

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Last modified May 5 18:00 EDT 2021. Contains 343572 sequences. (Running on oeis4.)