A061941 - OEIS

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A061941 as a simple table

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	11
7	58
8	77
9	143
10	209
11	1009
12	1280
13	6555
14	7564
15	12793
16	52162
17	59147
18	75801
19	85460
20	127710
21	205439
22	589003
23	856075

[1,2,3,4,6,11,58,77,143,209,1009,1280,6555,7564, 12793,52162,59147,75801,85460,127710,205439, 589003,856075]