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A206990 as a simple table

n a(n)
1 13
2 169
3 840
4 6510
5 46878
6 329952
7 2371090
8 16939450
9 120961040
10 864671390
11 6178621414
12 44150290200
13 315500062138
14 2254527357770
15 16110599565656
16 115124947986150
17 822671737926942
18 5878731842796456
19 42008857944366290

[13,169,840,6510,46878,329952,2371090,16939450,
 120961040,864671390,6178621414,44150290200,
 315500062138,2254527357770,16110599565656,
 115124947986150,822671737926942,5878731842796456,
 42008857944366290]

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Last modified September 19 21:42 EDT 2020. Contains 337184 sequences. (Running on oeis4.)