A100948 - OEIS

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A100948 as a simple table

n	a(n)
2	1
3	1
4	2
5	2
6	3
7	6
8	8
9	12
10	24
11	40
12	60
13	120
14	240
15	360
16	720
17	1680
18	2520
19	5040
20	13440
21	20160
22	40320
23	120960
24	181440
25	362880
26	1209600
27	1814400
28	3628800

[1,1,2,2,3,6,8,12,24,40,60,120,240,360,720,1680, 2520,5040,13440,20160,40320,120960,181440,362880, 1209600,1814400,3628800]