A093304 - OEIS

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A093304 as a simple table

n	a(n)
1	1
2	2
3	3
4	6
5	11
6	23
7	45
8	89
9	172
10	331
11	641
12	1239
13	2405
14	4685
15	9156
16	17955
17	35323
18	69687
19	137804
20	273055
21	541963
22	1077194
23	2143479
24	4269285
25	8509953

[1,2,3,6,11,23,45,89,172,331,641,1239,2405,4685, 9156,17955,35323,69687,137804,273055,541963, 1077194,2143479,4269285,8509953]