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A001420 as a simple table

n a(n)
1 2
2 3
3 6
4 14
5 36
6 94
7 250
8 675
9 1838
10 5053
11 14016
12 39169
13 110194
14 311751
15 886160
16 2529260
17 7244862
18 20818498
19 59994514
20 173338962
21 501994070
22 1456891547
23 4236446214
24 12341035217
25 36009329450
26 105229462401
27 307942754342
28 902338712971
29 2647263986022
30 7775314024683
31 22861250676074
32 67284446545605

[2,3,6,14,36,94,250,675,1838,5053,14016,39169,
 110194,311751,886160,2529260,7244862,20818498,
 59994514,173338962,501994070,1456891547,
 4236446214,12341035217,36009329450,105229462401,
 307942754342,902338712971,2647263986022,
 7775314024683,22861250676074,67284446545605]

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Last modified April 12 17:26 EDT 2021. Contains 342929 sequences. (Running on oeis4.)