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A267904 as a simple table

n a(n)
1 0
2 30
3 138
4 17658
5 414138
6 28493946
7 1246334388
8 72638390592
9 3823498828854
10 218021286182580

[0,30,138,17658,414138,28493946,1246334388,
 72638390592,3823498828854,218021286182580]

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Last modified March 27 05:46 EDT 2023. Contains 361554 sequences. (Running on oeis4.)