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A037660 as a simple table

n a(n)
1 3
2 13
3 52
4 211
5 845
6 3380
7 13523
8 54093
9 216372
10 865491
11 3461965
12 13847860
13 55391443
14 221565773
15 886263092
16 3545052371
17 14180209485
18 56720837940
19 226883351763
20 907533407053
21 3630133628212
22 14520534512851
23 58082138051405

[3,13,52,211,845,3380,13523,54093,216372,865491,
 3461965,13847860,55391443,221565773,886263092,
 3545052371,14180209485,56720837940,226883351763,
 907533407053,3630133628212,14520534512851,
 58082138051405]

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Last modified May 9 20:59 EDT 2021. Contains 343746 sequences. (Running on oeis4.)