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A139756 as a simple table

n a(n)
0 0
1 0
2 1
3 4
4 12
5 32
6 80
7 192
8 448
9 1024
10 2304
11 5120
12 11264
13 24576
14 53248
15 114688
16 245760
17 524288
18 1114112
19 2359296
20 4980736
21 10485760
22 22020096
23 46137344
24 96468992
25 201326592
26 419430400
27 872415232
28 1811939328
29 3758096384

[0,0,1,4,12,32,80,192,448,1024,2304,5120,11264,
 24576,53248,114688,245760,524288,1114112,2359296,
 4980736,10485760,22020096,46137344,96468992,
 201326592,419430400,872415232,1811939328,
 3758096384]

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Last modified March 28 15:28 EDT 2024. Contains 371254 sequences. (Running on oeis4.)