A038185 - OEIS

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A038185 as a simple table

n	a(n)
0	1
1	3
2	5
3	13
4	17
5	59
6	81
7	219
8	257
9	899
10	1349
11	3437
12	4353
13	15235
14	20805
15	56173
16	65537
17	229379
18	344069
19	876557
20	1118225
21	3913787
22	5313617
23	14399195
24	16842753
25	58949635
26	88424453
27	225271821
28	285282321

[1,3,5,13,17,59,81,219,257,899,1349,3437,4353, 15235,20805,56173,65537,229379,344069,876557, 1118225,3913787,5313617,14399195,16842753, 58949635,88424453,225271821,285282321]