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A002402 as a simple table

n a(n)
1 1
2 8
3 57
4 1292
5 7135
6 325560
7 4894715
8 125078632
9 1190664342
10 137798986920
11 1587893097945
12 258558380321076
13 3497709055775649
14 50821738502398864
15 1578753057237451095
16 443765620067972169968
17 7782162960545369351956
18 2741163034641146307693072
19 53564617257321061756508358
20 1100369599246721484969558920 

[1,8,57,1292,7135,325560,4894715,125078632,
 1190664342,137798986920,1587893097945,
 258558380321076,3497709055775649,
 50821738502398864,1578753057237451095,
 443765620067972169968,7782162960545369351956,
 2741163034641146307693072,
 53564617257321061756508358,
 1100369599246721484969558920]

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Last modified April 17 20:27 EDT 2024. Contains 371767 sequences. (Running on oeis4.)