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A298881 as a simple table

n a(n)
0 0
1 6
2 12
3 36
4 144
5 720
6 4320
7 30240
8 241920
9 2177280
10 21772800
11 239500800
12 2874009600
13 37362124800
14 523069747200
15 7846046208000
16 125536739328000
17 2134124568576000
18 38414242234368000
19 729870602452992000
20 14597412049059840000
21 306545653030256640000

[0,6,12,36,144,720,4320,30240,241920,2177280,
 21772800,239500800,2874009600,37362124800,
 523069747200,7846046208000,125536739328000,
 2134124568576000,38414242234368000,
 729870602452992000,14597412049059840000,
 306545653030256640000]

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Last modified April 16 14:05 EDT 2024. Contains 371740 sequences. (Running on oeis4.)