A295065 - OEIS

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A295065 as a simple table

n	a(n)
0	1
1	3
2	5
3	12
4	30
5	47
6	104
7	249
8	386
9	843
10	2005
11	3102
12	6759
13	16056
14	24833
15	54090
16	128467
17	198684
18	432741
19	1027758
20	1589495
21	3461952
22	8222089
23	12715986
24	27695643
25	65776740
26	101727917

[1,3,5,12,30,47,104,249,386,843,2005,3102,6759, 16056,24833,54090,128467,198684,432741,1027758, 1589495,3461952,8222089,12715986,27695643, 65776740,101727917]