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A216958 as a simple table

n a(n)
1 2
2 2
3 4
4 6
5 10
6 20
7 36
8 72
9 142
10 280
11 560
12 1114
13 2222
14 4436
15 8864
16 17718
17 35420
18 70824
19 141624
20 283210
21 566394
22 1132728
23 2265390
24 4530726
25 9061318
26 18122518
27 36244908
28 72489566
29 144978870
30 289957490
31 579914470
32 1159828430
33 2319656332
34 4639311620
35 9278622168

[2,2,4,6,10,20,36,72,142,280,560,1114,2222,4436,
 8864,17718,35420,70824,141624,283210,566394,
 1132728,2265390,4530726,9061318,18122518,36244908,
 72489566,144978870,289957490,579914470,1159828430,
 2319656332,4639311620,9278622168]

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Last modified April 25 13:26 EDT 2024. Contains 371971 sequences. (Running on oeis4.)