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A208653 as a simple table

n a(n)
1 1
2 1
3 1
4 3
5 4
6 50
7 90
8 5145
9 12544
10 3429216
11 11340000
12 15219319500
13 68309049600
14 457937132487120
15 2790771598030416
16 94609025993497640625
17 783056974947287040000
18 135476575389769051389952000
19 1523136299736565293430210560
20 1354434926051634531310373234715648

[1,1,1,3,4,50,90,5145,12544,3429216,11340000,
 15219319500,68309049600,457937132487120,
 2790771598030416,94609025993497640625,
 783056974947287040000,135476575389769051389952000,
 1523136299736565293430210560,
 1354434926051634531310373234715648]

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)