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A316688 as a simple table

n a(n)
1 4
2 3
3 8
4 9
5 21
6 42
7 81
8 165
9 330
10 657
11 1317
12 2634
13 5265
14 10533
15 21066
16 42129
17 84261
18 168522
19 337041
20 674085
21 1348170
22 2696337
23 5392677
24 10785354
25 21570705
26 43141413
27 86282826
28 172565649
29 345131301
30 690262602
31 1380525201
32 2761050405
33 5522100810

[4,3,8,9,21,42,81,165,330,657,1317,2634,5265,
 10533,21066,42129,84261,168522,337041,674085,
 1348170,2696337,5392677,10785354,21570705,
 43141413,86282826,172565649,345131301,690262602,
 1380525201,2761050405,5522100810]

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Last modified January 26 06:32 EST 2021. Contains 340434 sequences. (Running on oeis4.)