A332340 - OEIS

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A332340 as a simple table

n	a(n)
0	1
1	1
2	1
3	3
4	3
5	4
6	9
7	11
8	13
9	23
10	53
11	78
12	120
13	207
14	357
15	707
16	1183
17	2030
18	3558
19	6229
20	10868

[1,1,1,3,3,4,9,11,13,23,53,78,120,207,357,707, 1183,2030,3558,6229,10868]