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A001793 as a simple table

n a(n)
1 1
2 5
3 18
4 56
5 160
6 432
7 1120
8 2816
9 6912
10 16640
11 39424
12 92160
13 212992
14 487424
15 1105920
16 2490368
17 5570560
18 12386304
19 27394048
20 60293120
21 132120576
22 288358400
23 627048448
24 1358954496
25 2936012800
26 6325010432
27 13589544960
28 29125246976

[1,5,18,56,160,432,1120,2816,6912,16640,39424,
 92160,212992,487424,1105920,2490368,5570560,
 12386304,27394048,60293120,132120576,288358400,
 627048448,1358954496,2936012800,6325010432,
 13589544960,29125246976]

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Last modified April 18 03:33 EDT 2024. Contains 371767 sequences. (Running on oeis4.)