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A054921 as a simple table

n a(n)
0 1
1 2
2 3
3 10
4 50
5 354
6 3883
7 67994
8 2038236
9 109141344
10 10693855251
11 1934271527050
12 648399961915988
13 404093642681273382
14 469756524755173254759
15 1022121472711196824292810
16 4176802133456105622904206409
17 32159648543645931290004658982846

[1,2,3,10,50,354,3883,67994,2038236,109141344,
 10693855251,1934271527050,648399961915988,
 404093642681273382,469756524755173254759,
 1022121472711196824292810,
 4176802133456105622904206409,
 32159648543645931290004658982846]

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Last modified May 6 18:59 EDT 2024. Contains 372297 sequences. (Running on oeis4.)