A100981 - OEIS

A100981 as a simple table

n	a(n)
1	1
2	2
3	3
4	4
5	105
6	6
7	7
8	8
9	9
10	1210
11	11
12	12
13	13
14	14
15	9315
16	16
17	17
18	18
19	19
20	62420
21	21
22	22
23	23
24	24
25	8203025
26	26
27	27
28	28
29	29
30	2343630
31	31
32	32
33	33
34	34
35	13671735
36	36
37	37
38	38
39	39
40	78124840
41	41
42	42
43	43
44	44
45	439452945
46	46
47	47
48	48
49	49
50	295410156050
51	51

[1,2,3,4,105,6,7,8,9,1210,11,12,13,14,9315,16,17, 18,19,62420,21,22,23,24,8203025,26,27,28,29, 2343630,31,32,33,34,13671735,36,37,38,39,78124840, 41,42,43,44,439452945,46,47,48,49,295410156050,51]