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A059863 as a simple table

n a(n)
1 1
2 1
3 1
4 3
5 21
6 189
7 2457
8 36855
9 700245
10 17506125
11 472665375
12 15597957375
13 577124422875
14 22507852492125
15 967837657161375
16 47424045200907375
17 2608322486049905625
18 148674381704844620625
19 9366486047405211099375
20 627554565176149143658125
21 43301264997154290912410625

[1,1,1,3,21,189,2457,36855,700245,17506125,
 472665375,15597957375,577124422875,22507852492125,
 967837657161375,47424045200907375,
 2608322486049905625,148674381704844620625,
 9366486047405211099375,627554565176149143658125,
 43301264997154290912410625]

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Last modified September 8 07:09 EDT 2024. Contains 375751 sequences. (Running on oeis4.)