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A138409 as a simple table

n a(n)
1 60
2 720
3 15600
4 117600
5 1771440
6 4826640
7 24137280
8 47045520
9 148035360
10 594822480
11 887502720
12 2565725040
13 4750102560
14 6321361200
15 10779213120
16 22164358320
17 42180530160
18 51520370640
19 90458377680
20 128100278880

[60,720,15600,117600,1771440,4826640,24137280,
 47045520,148035360,594822480,887502720,2565725040,
 4750102560,6321361200,10779213120,22164358320,
 42180530160,51520370640,90458377680,128100278880]

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Last modified March 28 15:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)