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A158216 as a simple table

n a(n)
0 1
1 21
2 661
3 1155
4 362999
5 126665
6 55647901
7 13848835
8 4339301999
9 1509581997
10 1039041290105
11 164057761175
12 4663855110914309
13 17776570969729
14 1109040303936187
15 1920567044301675
16 10170010828057736383
17 206902004244165461
18 1711891737187759652887
19 22227014932144214335

[1,21,661,1155,362999,126665,55647901,13848835,
 4339301999,1509581997,1039041290105,164057761175,
 4663855110914309,17776570969729,1109040303936187,
 1920567044301675,10170010828057736383,
 206902004244165461,1711891737187759652887,
 22227014932144214335]

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Last modified October 22 12:48 EDT 2021. Contains 348168 sequences. (Running on oeis4.)