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A333981 as a simple table

n a(n)
0 0
1 1
2 4
3 34
4 576
5 16296
6 691408
7 41069568
8 3252707328
9 331218217600
10 42159307194624
11 6558777387076608
12 1224428872399488000
13 270143735036619436032
14 69534931015726331203584
15 20651854796028308275851264
16 7009822878720340562163007488
17 2696576146784893519040303235072
18 1166999997199470676471689819258880

[0,1,4,34,576,16296,691408,41069568,3252707328,
 331218217600,42159307194624,6558777387076608,
 1224428872399488000,270143735036619436032,
 69534931015726331203584,
 20651854796028308275851264,
 7009822878720340562163007488,
 2696576146784893519040303235072,
 1166999997199470676471689819258880]

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Last modified March 29 05:28 EDT 2024. Contains 371264 sequences. (Running on oeis4.)