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A056218 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 6
5 1
6 60
7 1
8 5040
9 10080
10 15120
11 1
12 19958400
13 1
14 8648640
15 1816214400
16 1307674368000
17 1
18 88921857024000
19 1
20 5068545850368000
21 1689515283456000
22 14079294028800
23 1
24 12926008369442488320000
25 1077167364120207360000
26 32382376266240000
27 50411432640825704448000000

[1,1,1,1,6,1,60,1,5040,10080,15120,1,19958400,1,
 8648640,1816214400,1307674368000,1,88921857024000,
 1,5068545850368000,1689515283456000,
 14079294028800,1,12926008369442488320000,
 1077167364120207360000,32382376266240000,
 50411432640825704448000000]

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Last modified September 18 11:24 EDT 2024. Contains 376000 sequences. (Running on oeis4.)