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A166898 as a simple table

n a(n)
0 1
1 1
2 2
3 10
4 38
5 137
6 646
7 3241
8 15623
9 79439
10 427562
11 2317396
12 12715372
13 71543343
14 408543758
15 2353591560
16 13717994046
17 80827739181
18 480016288156
19 2871701561720
20 17304832805996
21 104933348346951
22 639814473417775

[1,1,2,10,38,137,646,3241,15623,79439,427562,
 2317396,12715372,71543343,408543758,2353591560,
 13717994046,80827739181,480016288156,
 2871701561720,17304832805996,104933348346951,
 639814473417775]

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Last modified September 17 16:03 EDT 2024. Contains 375987 sequences. (Running on oeis4.)