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A091904 as a simple table

n a(n)
0 0
1 1
2 4
3 48
4 320
5 2816
6 21504
7 176128
8 1392640
9 11206656
10 89391104
11 716177408
12 5725224960
13 45818576896
14 366481506304
15 2932120485888
16 23455890145280
17 187651416129536
18 1501194149167104
19 12009621912813568
20 96076700424601600

[0,1,4,48,320,2816,21504,176128,1392640,11206656,
 89391104,716177408,5725224960,45818576896,
 366481506304,2932120485888,23455890145280,
 187651416129536,1501194149167104,
 12009621912813568,96076700424601600]

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Last modified April 23 10:29 EDT 2024. Contains 371905 sequences. (Running on oeis4.)