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A217931 as a simple table

n a(n)
1 0
2 2
3 2
4 4
5 8
6 16
7 32
8 64
9 126
10 252
11 504
12 1004
13 2008
14 4016
15 8024
16 16048
17 32096
18 64178
19 128356
20 256712
21 513392
22 1026784
23 2053568
24 4107076
25 8214152
26 16428304
27 32856482
28 65712964
29 131425928
30 262851612
31 525703224
32 1051406448
33 2102812394
34 4205624788
35 8411249576
36 16822498162

[0,2,2,4,8,16,32,64,126,252,504,1004,2008,4016,
 8024,16048,32096,64178,128356,256712,513392,
 1026784,2053568,4107076,8214152,16428304,32856482,
 65712964,131425928,262851612,525703224,1051406448,
 2102812394,4205624788,8411249576,16822498162]

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Last modified May 11 11:39 EDT 2024. Contains 372409 sequences. (Running on oeis4.)