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A349581 as a simple table

n a(n)
0 1
1 3
2 12
3 66
4 460
5 3681
6 31848
7 289176
8 2714044
9 26103468
10 255876048
11 2546717454
12 25666830724
13 261407935366
14 2686191839232
15 27815564456544
16 289960011573212
17 3040424427011492
18 32046741183678288
19 339345854532800136
20 3608307717155678256
21 38511520730570169033

[1,3,12,66,460,3681,31848,289176,2714044,26103468,
 255876048,2546717454,25666830724,261407935366,
 2686191839232,27815564456544,289960011573212,
 3040424427011492,32046741183678288,
 339345854532800136,3608307717155678256,
 38511520730570169033]

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Last modified September 16 15:31 EDT 2024. Contains 375976 sequences. (Running on oeis4.)