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A174661 as a simple table

n a(n)
0 1
1 1
2 4
3 15
4 82
5 475
6 3456
7 26719
8 239996
9 2313609
10 24846640
11 285861301
12 3586817928
13 47988744115
14 690525294018
15 10547453864445
16 171595180564816
17 2949836193259105
18 53630566660122696
19 1025856767305899229
20 20638503314068334480

[1,1,4,15,82,475,3456,26719,239996,2313609,
 24846640,285861301,3586817928,47988744115,
 690525294018,10547453864445,171595180564816,
 2949836193259105,53630566660122696,
 1025856767305899229,20638503314068334480]

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Last modified May 9 01:26 EDT 2024. Contains 372341 sequences. (Running on oeis4.)