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A279581 as a simple table

n a(n)
1 0
2 4
3 36
4 304
5 2212
6 15428
7 103648
8 680052
9 4380964
10 27829504
11 174806900
12 1087994628
13 6720111376
14 41240210276
15 251687871332
16 1528700226512
17 9246173840644
18 55718099241732
19 334660112687936
20 2004174865390100

[0,4,36,304,2212,15428,103648,680052,4380964,
 27829504,174806900,1087994628,6720111376,
 41240210276,251687871332,1528700226512,
 9246173840644,55718099241732,334660112687936,
 2004174865390100]

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Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)