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A291235 as a simple table

n a(n)
0 1
1 2
2 5
3 12
4 29
5 69
6 166
7 394
8 944
9 2245
10 5365
11 12781
12 30506
13 72734
14 173520
15 413838
16 987130
17 2354465
18 5615889
19 13395047
20 31949764
21 76206828
22 181768094
23 433554067
24 1034112065
25 2466566144
26 5883251633
27 14032736684
28 33470882601
29 79834762768
30 190421890053

[1,2,5,12,29,69,166,394,944,2245,5365,12781,30506,
 72734,173520,413838,987130,2354465,5615889,
 13395047,31949764,76206828,181768094,433554067,
 1034112065,2466566144,5883251633,14032736684,
 33470882601,79834762768,190421890053]

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Last modified June 20 10:13 EDT 2019. Contains 324234 sequences. (Running on oeis4.)