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A306905 as a simple table

n a(n)
1 1
2 4
3 6
4 16
5 20
6 48
7 70
8 160
9 270
10 560
11 1034
12 2160
13 4108
14 8344
15 16440
16 33088
17 65552
18 131688
19 262162
20 525440
21 1048740
22 2099240
23 4194326
24 8393184
25 16777300
26 33562672
27 67109418
28 134234464
29 268435484
30 536904960
31 1073741854
32 2147549824
33 4294969404

[1,4,6,16,20,48,70,160,270,560,1034,2160,4108,
 8344,16440,33088,65552,131688,262162,525440,
 1048740,2099240,4194326,8393184,16777300,33562672,
 67109418,134234464,268435484,536904960,1073741854,
 2147549824,4294969404]

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Last modified April 17 23:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)