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A198630 as a simple table

n a(n)
0 1
1 4
2 28
3 208
4 1540
5 11344
6 83188
7 607408
8 4416580
9 31986064
10 230784148
11 1659338608
12 11892395620
13 84983496784
14 605698755508
15 4306834677808
16 30560156566660 

[1,4,28,208,1540,11344,83188,607408,4416580,
 31986064,230784148,1659338608,11892395620,
 84983496784,605698755508,4306834677808,
 30560156566660]

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Last modified June 12 12:26 EDT 2024. Contains 373331 sequences. (Running on oeis4.)