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A193638 as a simple table

n a(n)
0 1
1 0
2 2
3 174
4 41304
5 19606320
6 16438575600
7 22278418248240
8 45718006789687680
9 135143407245840698880
10 553269523327347306412800
11 3039044104423605600086688000
12 21819823367694505460651694873600
13 200345011881335747639978525387827200

[1,0,2,174,41304,19606320,16438575600,
 22278418248240,45718006789687680,
 135143407245840698880,553269523327347306412800,
 3039044104423605600086688000,
 21819823367694505460651694873600,
 200345011881335747639978525387827200]

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Last modified March 28 08:22 EDT 2024. Contains 371236 sequences. (Running on oeis4.)