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A101901 as a simple table

n a(n)
0 1
1 2
2 4
3 10
4 30
5 110
6 484
7 2514
8 15142
9 104126
10 806772
11 6965090
12 66374766
13 692629618
14 7860173564
15 96428710490
16 1272217776422
17 17968286438066
18 270569090589308
19 4328163151246858
20 73311692500174358
21 1311041890981700358

[1,2,4,10,30,110,484,2514,15142,104126,806772,
 6965090,66374766,692629618,7860173564,96428710490,
 1272217776422,17968286438066,270569090589308,
 4328163151246858,73311692500174358,
 1311041890981700358]

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Last modified April 23 10:29 EDT 2024. Contains 371905 sequences. (Running on oeis4.)