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A143600 as a simple table

n a(n)
0 1
1 1
2 5
3 25
4 249
5 2561
6 40573
7 641817
8 14110001
9 302279617
10 8530496181
11 230851019609
12 7964867290537
13 260618470319169
14 10635790073585069
15 408342804482252761
16 19246730825243728737
17 848289638051491455617
18 45356940470607637151845
19 2257054105205570995111833

[1,1,5,25,249,2561,40573,641817,14110001,
 302279617,8530496181,230851019609,7964867290537,
 260618470319169,10635790073585069,
 408342804482252761,19246730825243728737,
 848289638051491455617,45356940470607637151845,
 2257054105205570995111833]

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Last modified November 20 02:34 EST 2019. Contains 329323 sequences. (Running on oeis4.)