A342762 - OEIS

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A342762 as a simple table

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	3
6	5
7	10
8	20
9	42
10	86
11	178
12	362
13	738
14	1490
15	3010
16	6050
17	12162
18	24386
19	48898
20	97922
21	196098
22	392450
23	785410
24	1571330
25	3143682
26	6288386

[1,1,1,1,1,3,5,10,20,42,86,178,362,738,1490,3010, 6050,12162,24386,48898,97922,196098,392450,785410, 1571330,3143682,6288386]