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A023945 as a simple table

n a(n)
0 1
1 0
2 93150
3 6476800
4 133204500
5 1384998912
6 9403968600
7 47406643200
8 192825064350
9 663509299200
10 2007834672456
11 5456580940800
12 13618454702600
13 31528851609600
14 68717357121600
15 141663767066624
16 279245882826900
17 527244094771200
18 961802512637350

[1,0,93150,6476800,133204500,1384998912,
 9403968600,47406643200,192825064350,663509299200,
 2007834672456,5456580940800,13618454702600,
 31528851609600,68717357121600,141663767066624,
 279245882826900,527244094771200,961802512637350]

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Last modified March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)