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A225880 as a simple table

n a(n)
1 12
2 56
3 672
4 992
5 11904
6 16256
7 55552
8 195072
9 666624
10 910336
11 10924032
12 16125952
13 67100672
14 193511424
15 805208064
16 903053312
17 3757637632
18 10836639744
19 17179738112
20 45091651584
21 66563866624
22 206156857344
23 274877382656
24 798766399488
25 962065334272
26 1090788524032

[12,56,672,992,11904,16256,55552,195072,666624,
 910336,10924032,16125952,67100672,193511424,
 805208064,903053312,3757637632,10836639744,
 17179738112,45091651584,66563866624,206156857344,
 274877382656,798766399488,962065334272,
 1090788524032]

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Last modified October 18 00:21 EDT 2019. Contains 328135 sequences. (Running on oeis4.)