A324534 - cp's OEIS frontend

A324534 The smallest common prime factor of sigma(n) and A276086(n), or 1 if no such prime exists.

n	a(n)
1	1
2	3
3	2
4	1
5	2
6	1
7	2
8	3
9	1
10	3
11	2
12	1
13	2
14	3
15	2
16	1
17	2
18	1
19	2
20	3
21	2
22	3
23	2
24	5
25	1
26	3
27	2
28	1
29	2
30	1
31	2
32	3
33	2
34	3
35	2
36	7
37	2
38	3
39	2
40	3
41	2
42	1
43	2
44	3
45	2
46	3
47	2
48	1
49	1
50	3
51	2
52	7
53	2
54	5
55	2
56	3
57	2
58	3
59	2
60	7
61	2
62	3
63	2
64	1
65	2
66	1
67	2
68	3
69	2
70	3
71	2
72	5
73	2
74	3
75	2
76	5
77	2
78	7
79	2
80	3
81	1
82	3
83	2
84	7
85	2
86	3
87	2
88	3
89	2
90	1
91	2
92	3
93	2
94	3
95	2
96	7
97	2
98	3
99	2
100	7
101	2
102	1
103	2
104	3
105	2

[1, 3, 2, 1, 2, 1, 2, 3, 1, 3, 2, 1, 2, 3, 2, 1, 2, 1, 2, 3, 2, 3, 2, 5, 1, 3, 2, 1, 2, 1, 2, 3, 2, 3, 2, 7, 2, 3, 2, 3, 2, 1, 2, 3, 2, 3, 2, 1, 1, 3, 2, 7, 2, 5, 2, 3, 2, 3, 2, 7, 2, 3, 2, 1, 2, 1, 2, 3, 2, 3, 2, 5, 2, 3, 2, 5, 2, 7, 2, 3, 1, 3, 2, 7, 2, 3, 2, 3, 2, 1, 2, 3, 2, 3, 2, 7, 2, 3, 2, 7, 2, 1, 2, 3, 2]

cp's OEIS Frontend

A324534 The smallest common prime factor of sigma(n) and A276086(n), or 1 if no such prime exists.

Table of values

List of values

n	a(n)
1	1
2	3
3	2
4	1
5	2
6	1
7	2
8	3
9	1
10	3
11	2
12	1
13	2
14	3
15	2
16	1
17	2
18	1
19	2
20	3
21	2
22	3
23	2
24	5
25	1
26	3
27	2
28	1
29	2
30	1
31	2
32	3
33	2
34	3
35	2
36	7
37	2
38	3
39	2
40	3
41	2
42	1
43	2
44	3
45	2
46	3
47	2
48	1
49	1
50	3
51	2
52	7
53	2
54	5
55	2
56	3
57	2
58	3
59	2
60	7
61	2
62	3
63	2
64	1
65	2
66	1
67	2
68	3
69	2
70	3
71	2
72	5
73	2
74	3
75	2
76	5
77	2
78	7
79	2
80	3
81	1
82	3
83	2
84	7
85	2
86	3
87	2
88	3
89	2
90	1
91	2
92	3
93	2
94	3
95	2
96	7
97	2
98	3
99	2
100	7
101	2
102	1
103	2
104	3
105	2

n	a(n)
1	1
2	3
3	2
4	1
5	2
6	1
7	2
8	3
9	1
10	3
11	2
12	1
13	2
14	3
15	2
16	1
17	2
18	1
19	2
20	3
21	2
22	3
23	2
24	5
25	1
26	3
27	2
28	1
29	2
30	1
31	2
32	3
33	2
34	3
35	2
36	7
37	2
38	3
39	2
40	3
41	2
42	1
43	2
44	3
45	2
46	3
47	2
48	1
49	1
50	3
51	2
52	7
53	2
54	5
55	2
56	3
57	2
58	3
59	2
60	7
61	2
62	3
63	2
64	1
65	2
66	1
67	2
68	3
69	2
70	3
71	2
72	5
73	2
74	3
75	2
76	5
77	2
78	7
79	2
80	3
81	1
82	3
83	2
84	7
85	2
86	3
87	2
88	3
89	2
90	1
91	2
92	3
93	2
94	3
95	2
96	7
97	2
98	3
99	2
100	7
101	2
102	1
103	2
104	3
105	2

n	a(n)
1	1
2	3
3	2
4	1
5	2
6	1
7	2
8	3
9	1
10	3
11	2
12	1
13	2
14	3
15	2
16	1
17	2
18	1
19	2
20	3
21	2
22	3
23	2
24	5
25	1
26	3
27	2
28	1
29	2
30	1
31	2
32	3
33	2
34	3
35	2
36	7
37	2
38	3
39	2
40	3
41	2
42	1
43	2
44	3
45	2
46	3
47	2
48	1
49	1
50	3
51	2
52	7
53	2
54	5
55	2
56	3
57	2
58	3
59	2
60	7
61	2
62	3
63	2
64	1
65	2
66	1
67	2
68	3
69	2
70	3
71	2
72	5
73	2
74	3
75	2
76	5
77	2
78	7
79	2
80	3
81	1
82	3
83	2
84	7
85	2
86	3
87	2
88	3
89	2
90	1
91	2
92	3
93	2
94	3
95	2
96	7
97	2
98	3
99	2
100	7
101	2
102	1
103	2
104	3
105	2