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A000657 as a simple table

n a(n)
0 1
1 1
2 4
3 46
4 1024
5 36976
6 1965664
7 144361456
8 13997185024
9 1731678144256
10 266182076161024
11 49763143319190016
12 11118629668610842624
13 2925890822304510631936
14 895658946905031792553984
15 315558279782214450517374976
16 126780706777739389745128013824

[1,1,4,46,1024,36976,1965664,144361456,
 13997185024,1731678144256,266182076161024,
 49763143319190016,11118629668610842624,
 2925890822304510631936,895658946905031792553984,
 315558279782214450517374976,
 126780706777739389745128013824]

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Last modified August 18 08:57 EDT 2019. Contains 326077 sequences. (Running on oeis4.)