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A045657 as a simple table

n a(n)
0 0
1 0
2 0
3 0
4 0
5 80
6 384
7 2352
8 9856
9 42840
10 169360
11 676720
12 2631072
13 10265216
14 39779600
15 154498280
16 599565952
17 2330826752
18 9068429544
19 35332969392
20 137817174800
21 538204065336
22 2103971573264
23 8233197139552
24 32247054724768

[0,0,0,0,0,80,384,2352,9856,42840,169360,676720,
 2631072,10265216,39779600,154498280,599565952,
 2330826752,9068429544,35332969392,137817174800,
 538204065336,2103971573264,8233197139552,
 32247054724768]

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)