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A120765 as a simple table

n a(n)
0 0
1 1
2 0
3 5
4 24
5 209
6 2120
7 25829
8 365456
9 5895105
10 106794992
11 2147006949
12 47436635752
13 1142570789073
14 29797622256376
15 836527783016197
16 25153234375160992
17 806519154686509057
18 27470342073410272608
19 990496662138073867333
20 37692249497898323450424

[0,1,0,5,24,209,2120,25829,365456,5895105,
 106794992,2147006949,47436635752,1142570789073,
 29797622256376,836527783016197,25153234375160992,
 806519154686509057,27470342073410272608,
 990496662138073867333,37692249497898323450424]

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Last modified April 25 06:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)