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A210902 as a simple table

n a(n)
1 1
2 3
3 17
4 252
5 6328
6 297609
7 25886499
8 4205102578
9 1265408306700
10 707818003940086
11 733897633220152333
12 1410044723992401143016

[1,3,17,252,6328,297609,25886499,4205102578,
 1265408306700,707818003940086,733897633220152333,
 1410044723992401143016]

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Last modified May 21 14:54 EDT 2022. Contains 353921 sequences. (Running on oeis4.)