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A278019 as a simple table

n a(n)
1 0
2 7734
3 2072344
4 699721024
5 233160226732
6 77589535205794
7 25821185682305524
8 8592958824701790896
9 2859602832674813814112
10 951630300604165753555590
11 316687355530488310683471550
12 105388483387006153868422307268

[0,7734,2072344,699721024,233160226732,
 77589535205794,25821185682305524,
 8592958824701790896,2859602832674813814112,
 951630300604165753555590,
 316687355530488310683471550,
 105388483387006153868422307268]

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Last modified November 26 21:07 EST 2021. Contains 349344 sequences. (Running on oeis4.)