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A181993 as a simple table

n a(n)
0 1
1 2
2 6
3 15
4 630
5 2835
6 155925
7 6081075
8 1277025750
9 10854718875
10 1856156927625
11 194896477400625
12 2900518163668125
13 3698160658676859375
14 1298054391195577640625
15 263505041412702261046875
16 245059688513813102773593750
17 4043484860477916195764296875

[1,2,6,15,630,2835,155925,6081075,1277025750,
 10854718875,1856156927625,194896477400625,
 2900518163668125,3698160658676859375,
 1298054391195577640625,263505041412702261046875,
 245059688513813102773593750,
 4043484860477916195764296875]

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Last modified April 24 17:29 EDT 2024. Contains 371962 sequences. (Running on oeis4.)