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A122946 as a simple table

n a(n)
0 0
1 0
2 2
3 2
4 2
5 10
6 18
7 26
8 66
9 138
10 242
11 506
12 1058
13 2026
14 4050
15 8282
16 16386
17 32586
18 65714
19 131258
20 261602
21 524458
22 1049490
23 2095898
24 4193730
25 8391690
26 16775282
27 33550202
28 67116962
29 134218090
30 268418898
31 536886746
32 1073759106
33 2147434698
34 4294981682
35 8590018106

[0,0,2,2,2,10,18,26,66,138,242,506,1058,2026,4050,
 8282,16386,32586,65714,131258,261602,524458,
 1049490,2095898,4193730,8391690,16775282,33550202,
 67116962,134218090,268418898,536886746,1073759106,
 2147434698,4294981682,8590018106]

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Last modified April 23 06:04 EDT 2024. Contains 371906 sequences. (Running on oeis4.)