A165851 - OEIS

A165851 as a simple table

n	a(n)
1	1
2	30
3	30
4	900
5	30
6	900
7	30
8	27000
9	900
10	900
11	30
12	27000
13	30
14	900
15	900
16	810000
17	30
18	27000
19	30
20	27000
21	900
22	900
23	30
24	810000
25	900
26	900
27	27000
28	27000
29	30
30	27000
31	30
32	24300000
33	900
34	900
35	900
36	810000
37	30
38	900
39	900
40	810000
41	30
42	27000
43	30
44	27000
45	27000

[1,30,30,900,30,900,30,27000,900,900,30,27000,30, 900,900,810000,30,27000,30,27000,900,900,30, 810000,900,900,27000,27000,30,27000,30,24300000, 900,900,900,810000,30,900,900,810000,30,27000,30, 27000,27000]