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A113180 as a simple table

n a(n)
0 1
1 2
2 4
3 8
4 20
5 56
6 160
7 448
8 1240
9 3440
10 9632
11 27200
12 77216
13 219840
14 627200
15 1793024
16 5136480
17 14743232
18 42390400
19 122064640
20 351951232
21 1015990528
22 2936079360
23 8493340672
24 24591589120
25 71262291456
26 206666232832
27 599778166784

[1,2,4,8,20,56,160,448,1240,3440,9632,27200,77216,
 219840,627200,1793024,5136480,14743232,42390400,
 122064640,351951232,1015990528,2936079360,
 8493340672,24591589120,71262291456,206666232832,
 599778166784]

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Last modified May 24 12:49 EDT 2024. Contains 372773 sequences. (Running on oeis4.)