A371699 - cp's OEIS frontend

A371699 The smallest composite number which divides the concatenation of its descending ordered prime factors, with repetition, when written in base n.

n	a(n)
2	42
3	4
4	42
5	4
6	374
7	4
8	9
9	4
10	378
11	4
12	609
13	4
14	9
15	4
16	3525
17	4
18	343
19	4
20	9
21	4
22	70
23	4
24	25
25	4
26	9
27	4
28	195
29	4
30	343
31	4
32	9
33	4
34	25
35	4
36	130
37	4
38	9
39	4
40	366
41	4
42	3562
43	4
44	9
45	4
46	42
47	4
48	49
49	4
50	9
51	4
52	474
53	4
54	25
55	4
56	9
57	4
58	238
59	4
60	1131
61	4
62	9
63	4
64	25
65	4
66	555
67	4
68	9
69	4
70	14405
71	4
72	12207

[42, 4, 42, 4, 374, 4, 9, 4, 378, 4, 609, 4, 9, 4, 3525, 4, 343, 4, 9, 4, 70, 4, 25, 4, 9, 4, 195, 4, 343, 4, 9, 4, 25, 4, 130, 4, 9, 4, 366, 4, 3562, 4, 9, 4, 42, 4, 49, 4, 9, 4, 474, 4, 25, 4, 9, 4, 238, 4, 1131, 4, 9, 4, 25, 4, 555, 4, 9, 4, 14405, 4, 12207]

cp's OEIS Frontend

A371699 The smallest composite number which divides the concatenation of its descending ordered prime factors, with repetition, when written in base n.

Table of values

List of values