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A317431 as a simple table

n a(n)
1 1
2 16
3 61
4 201
5 863
6 3666
7 14831
8 61638
9 255772
10 1057307
11 4380003
12 18147665
13 75156794
14 311315739
15 1289593418
16 5341744958
17 22126877953
18 91655931185
19 379663396847
20 1572669053056
21 6514430280073
22 26984558653702
23 111777454797820

[1,16,61,201,863,3666,14831,61638,255772,1057307,
 4380003,18147665,75156794,311315739,1289593418,
 5341744958,22126877953,91655931185,379663396847,
 1572669053056,6514430280073,26984558653702,
 111777454797820]

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Last modified August 13 20:49 EDT 2022. Contains 356107 sequences. (Running on oeis4.)