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A145638 as a simple table

n a(n)
1 1
2 6
3 15
4 60
5 45
6 990
7 6435
8 10296
9 43758
10 4157010
11 2078505
12 191222460
13 239028075
14 1434168450
15 20795442525
16 10314539492400
17 2578634873100
18 1289317436550
19 23852372576175
20 95409490304700
21 977947275623175
22 84103465703593050

[1,6,15,60,45,990,6435,10296,43758,4157010,
 2078505,191222460,239028075,1434168450,
 20795442525,10314539492400,2578634873100,
 1289317436550,23852372576175,95409490304700,
 977947275623175,84103465703593050]

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Last modified March 29 03:51 EDT 2024. Contains 371264 sequences. (Running on oeis4.)