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A098757 as a simple table

n a(n)
0 0
1 2
2 4
3 6
4 80
5 24
6 680
7 246
8 802
9 46
10 8024
11 6802
12 4680
13 24680
14 246802
15 46802
16 468024
17 68024
18 680246
19 80246
20 8024680
21 2468024
22 68024680
23 24680246
24 80246802
25 4680246
26 802468024
27 680246802
28 468024680
29 2468024680
30 24680246802
31 4680246802

[0,2,4,6,80,24,680,246,802,46,8024,6802,4680,
 24680,246802,46802,468024,68024,680246,80246,
 8024680,2468024,68024680,24680246,80246802,
 4680246,802468024,680246802,468024680,2468024680,
 24680246802,4680246802]

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Last modified December 1 02:46 EST 2021. Contains 349426 sequences. (Running on oeis4.)