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A153941 as a simple table

n a(n)
0 1
1 2
2 2
3 3
4 8
5 18
6 64
7 323
8 1239
9 7677
10 70851
11 462347
12 4699837
13 77982415
14 865056340
15 15519583779
16 437728798867
17 8808271045842
18 278977031301418

[1,2,2,3,8,18,64,323,1239,7677,70851,462347,
 4699837,77982415,865056340,15519583779,
 437728798867,8808271045842,278977031301418]

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Last modified April 23 22:36 EDT 2024. Contains 371917 sequences. (Running on oeis4.)