A273258 - cp's OEIS frontend

A273258 Write the distinct prime divisors p of n in the (PrimePi(p) - 1)-th place, ignoring multiplicity. Decode the resulting number after first reversing the code, ignoring any leading zeros.

n	a(n)
1	1
2	2
3	2
4	2
5	2
6	6
7	2
8	2
9	2
10	10
11	2
12	6
13	2
14	14
15	6
16	2
17	2
18	6
19	2
20	10
21	10
22	22
23	2
24	6
25	2
26	26
27	2
28	14
29	2
30	30
31	2
32	2
33	14
34	34
35	6
36	6
37	2
38	38
39	22
40	10
41	2
42	70
43	2
44	22
45	6
46	46
47	2
48	6
49	2
50	10
51	26
52	26
53	2
54	6
55	10
56	14
57	34
58	58
59	2
60	30
61	2
62	62
63	10
64	2
65	14
66	154
67	2
68	34
69	38
70	42
71	2
72	6
73	2
74	74
75	6
76	38
77	6
78	286
79	2
80	10
81	2
82	82
83	2
84	70
85	22
86	86

[1, 2, 2, 2, 2, 6, 2, 2, 2, 10, 2, 6, 2, 14, 6, 2, 2, 6, 2, 10, 10, 22, 2, 6, 2, 26, 2, 14, 2, 30, 2, 2, 14, 34, 6, 6, 2, 38, 22, 10, 2, 70, 2, 22, 6, 46, 2, 6, 2, 10, 26, 26, 2, 6, 10, 14, 34, 58, 2, 30, 2, 62, 10, 2, 14, 154, 2, 34, 38, 42, 2, 6, 2, 74, 6, 38, 6, 286, 2, 10, 2, 82, 2, 70, 22, 86]

cp's OEIS Frontend

A273258 Write the distinct prime divisors p of n in the (PrimePi(p) - 1)-th place, ignoring multiplicity. Decode the resulting number after first reversing the code, ignoring any leading zeros.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	2
5	2
6	6
7	2
8	2
9	2
10	10
11	2
12	6
13	2
14	14
15	6
16	2
17	2
18	6
19	2
20	10
21	10
22	22
23	2
24	6
25	2
26	26
27	2
28	14
29	2
30	30
31	2
32	2
33	14
34	34
35	6
36	6
37	2
38	38
39	22
40	10
41	2
42	70
43	2
44	22
45	6
46	46
47	2
48	6
49	2
50	10
51	26
52	26
53	2
54	6
55	10
56	14
57	34
58	58
59	2
60	30
61	2
62	62
63	10
64	2
65	14
66	154
67	2
68	34
69	38
70	42
71	2
72	6
73	2
74	74
75	6
76	38
77	6
78	286
79	2
80	10
81	2
82	82
83	2
84	70
85	22
86	86

n	a(n)
1	1
2	2
3	2
4	2
5	2
6	6
7	2
8	2
9	2
10	10
11	2
12	6
13	2
14	14
15	6
16	2
17	2
18	6
19	2
20	10
21	10
22	22
23	2
24	6
25	2
26	26
27	2
28	14
29	2
30	30
31	2
32	2
33	14
34	34
35	6
36	6
37	2
38	38
39	22
40	10
41	2
42	70
43	2
44	22
45	6
46	46
47	2
48	6
49	2
50	10
51	26
52	26
53	2
54	6
55	10
56	14
57	34
58	58
59	2
60	30
61	2
62	62
63	10
64	2
65	14
66	154
67	2
68	34
69	38
70	42
71	2
72	6
73	2
74	74
75	6
76	38
77	6
78	286
79	2
80	10
81	2
82	82
83	2
84	70
85	22
86	86

n	a(n)
1	1
2	2
3	2
4	2
5	2
6	6
7	2
8	2
9	2
10	10
11	2
12	6
13	2
14	14
15	6
16	2
17	2
18	6
19	2
20	10
21	10
22	22
23	2
24	6
25	2
26	26
27	2
28	14
29	2
30	30
31	2
32	2
33	14
34	34
35	6
36	6
37	2
38	38
39	22
40	10
41	2
42	70
43	2
44	22
45	6
46	46
47	2
48	6
49	2
50	10
51	26
52	26
53	2
54	6
55	10
56	14
57	34
58	58
59	2
60	30
61	2
62	62
63	10
64	2
65	14
66	154
67	2
68	34
69	38
70	42
71	2
72	6
73	2
74	74
75	6
76	38
77	6
78	286
79	2
80	10
81	2
82	82
83	2
84	70
85	22
86	86