A146040 - OEIS

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A146040 as a simple table

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	1
7	1
8	1
9	29
10	29
11	249
12	249
13	4021
14	4021
15	99935
16	99935
17	4398251
18	4398251
19	362789159
20	362789159
21	47338031953
22	47338031953
23	10727733486159
24	10727733486159

[1,1,1,1,1,1,1,1,29,29,249,249,4021,4021,99935, 99935,4398251,4398251,362789159,362789159, 47338031953,47338031953,10727733486159, 10727733486159]