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A023000 as a simple table

n a(n)
0 0
1 1
2 8
3 57
4 400
5 2801
6 19608
7 137257
8 960800
9 6725601
10 47079208
11 329554457
12 2306881200
13 16148168401
14 113037178808
15 791260251657
16 5538821761600
17 38771752331201
18 271402266318408
19 1899815864228857
20 13298711049602000

[0,1,8,57,400,2801,19608,137257,960800,6725601,
 47079208,329554457,2306881200,16148168401,
 113037178808,791260251657,5538821761600,
 38771752331201,271402266318408,1899815864228857,
 13298711049602000]

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)