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A026754 as a simple table

n a(n)
0 1
1 2
2 5
3 10
4 24
5 48
6 114
7 228
8 540
9 1080
10 2558
11 5116
12 12133
13 24266
14 57658
15 115316
16 274600
17 549200
18 1310817
19 2621634
20 6271788
21 12543576
22 30076629
23 60153258
24 144550655
25 289101310
26 696176322
27 1392352644
28 3359516328

[1,2,5,10,24,48,114,228,540,1080,2558,5116,12133,
 24266,57658,115316,274600,549200,1310817,2621634,
 6271788,12543576,30076629,60153258,144550655,
 289101310,696176322,1392352644,3359516328]

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Last modified July 21 18:06 EDT 2019. Contains 325198 sequences. (Running on oeis4.)