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A033657 as a simple table

n a(n)
0 23
1 55
2 110
3 121
4 242
5 484
6 968
7 1837
8 9218
9 17347
10 91718
11 173437
12 907808
13 1716517
14 8872688
15 17735476
16 85189247
17 159487405
18 664272356
19 1317544822
20 3602001953
21 7193004016
22 13297007933
23 47267087164

[23,55,110,121,242,484,968,1837,9218,17347,91718,
 173437,907808,1716517,8872688,17735476,85189247,
 159487405,664272356,1317544822,3602001953,
 7193004016,13297007933,47267087164]

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Last modified July 23 23:47 EDT 2024. Contains 374575 sequences. (Running on oeis4.)