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A004300 as a simple table

n a(n)
1 1
2 1
3 2
4 7
5 22
6 96
7 380
8 1853
9 8510
10 44940
11 229836
12 1296410
13 7211116
14 43096912
15 256874200
16 1617413773
17 10226972110
18 67542201972
19 449809389740
20 3104409032126

[1,1,2,7,22,96,380,1853,8510,44940,229836,1296410,
 7211116,43096912,256874200,1617413773,10226972110,
 67542201972,449809389740,3104409032126]

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Last modified April 23 15:17 EDT 2024. Contains 371916 sequences. (Running on oeis4.)