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A072526 as a simple table

n a(n)
1 0
2 1
3 5
4 19
5 389
6 1045
7 78077
8 623245
9 6626426
10 3301971
11 92695530505
12 285361879
13 17061288862565
14 1065000744223
15 25118392969537
16 2119645764556535
17 147712619442026368532
18 1188946883458975
19 240322519506608309910831
20 9412105864959423959
21 3368266474732313495945
22 29482240157146090479193

[0,1,5,19,389,1045,78077,623245,6626426,3301971,
 92695530505,285361879,17061288862565,
 1065000744223,25118392969537,2119645764556535,
 147712619442026368532,1188946883458975,
 240322519506608309910831,9412105864959423959,
 3368266474732313495945,29482240157146090479193]

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