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A078841 as a simple table

n a(n)
0 1
1 3
2 9
3 20
4 54
5 112
6 240
7 648
8 1344
9 2816
10 5760
11 12800
12 26624
13 62208
14 129024
15 270336
16 552960
17 1114112
18 2293760
19 4915200
20 9961472
21 20447232
22 47775744
23 96468992
24 198180864
25 411041792
26 830472192
27 1698693120
28 3422552064
29 7046430720

[1,3,9,20,54,112,240,648,1344,2816,5760,12800,
 26624,62208,129024,270336,552960,1114112,2293760,
 4915200,9961472,20447232,47775744,96468992,
 198180864,411041792,830472192,1698693120,
 3422552064,7046430720]

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Last modified April 19 16:52 EDT 2024. Contains 371794 sequences. (Running on oeis4.)