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A250164 as a simple table

n a(n)
1 6
2 48
3 380
4 2860
5 19896
6 129648
7 810964
8 4962056
9 30034672
10 180893724
11 1087112084
12 6527090276
13 39173693352
14 235070531992
15 1410496377492
16 8463170413616
17 50779536937024
18 304678626418660
19 1828075665965204
20 10968465043204908

[6,48,380,2860,19896,129648,810964,4962056,
 30034672,180893724,1087112084,6527090276,
 39173693352,235070531992,1410496377492,
 8463170413616,50779536937024,304678626418660,
 1828075665965204,10968465043204908]

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Last modified September 21 16:31 EDT 2021. Contains 347598 sequences. (Running on oeis4.)