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A195560 as a simple table

n a(n)
1 0
2 3
3 60
4 161
5 559
6 660
7 3597
8 78480
9 208079
10 726481
11 856080
12 4669203
13 101866380
14 270087281
15 942970879
16 1111191780
17 6060621597
18 132222483360
19 350573081759
20 1223975475361
21 1442326073760
22 7866682164003
23 171624681534300
24 455043590036801

[0,3,60,161,559,660,3597,78480,208079,726481,
 856080,4669203,101866380,270087281,942970879,
 1111191780,6060621597,132222483360,350573081759,
 1223975475361,1442326073760,7866682164003,
 171624681534300,455043590036801]

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Last modified February 5 12:47 EST 2023. Contains 360084 sequences. (Running on oeis4.)