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A157572 as a simple table

n a(n)
2 1
3 3
4 42
5 13330
6 1149525
7 68923281
8 3762973571
9 184036492377
10 8678968080840
11 390210773279547
12 17118756925603575
13 733096379424490302
14 30076017737894907870
15 1173815703627064565445
16 43806372065182513944702

[1,3,42,13330,1149525,68923281,3762973571,
 184036492377,8678968080840,390210773279547,
 17118756925603575,733096379424490302,
 30076017737894907870,1173815703627064565445,
 43806372065182513944702]

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Last modified August 11 10:15 EDT 2022. Contains 356065 sequences. (Running on oeis4.)