A286455 - cp's OEIS frontend

A286455 Compound filter (smallest prime dividing n & prime signature of conjugated prime factorization): a(n) = P(A055396(n), A286621(n)), where P(n,k) is sequence A000027 used as a pairing function.

n	a(n)
1	0
2	2
3	8
4	2
5	18
6	11
7	40
8	2
9	8
10	22
11	71
12	11
13	97
14	46
15	30
16	2
17	143
18	11
19	179
20	22
21	93
22	92
23	262
24	11
25	18
26	121
27	8
28	46
29	335
30	154
31	417
32	2
33	212
34	211
35	69
36	11
37	540
38	254
39	302
40	22
41	679
42	326
43	794
44	92
45	30
46	379
47	918
48	11
49	40
50	22
51	467
52	121
53	1051
54	11
55	234
56	46
57	530
58	529
59	1242
60	154
61	1344
62	631
63	93
64	2
65	744
66	704
67	1615
68	211
69	822
70	326
71	1790
72	11
73	1912
74	904
75	30
76	254
77	140
78	947
79	2167
80	22
81	8

[0, 2, 8, 2, 18, 11, 40, 2, 8, 22, 71, 11, 97, 46, 30, 2, 143, 11, 179, 22, 93, 92, 262, 11, 18, 121, 8, 46, 335, 154, 417, 2, 212, 211, 69, 11, 540, 254, 302, 22, 679, 326, 794, 92, 30, 379, 918, 11, 40, 22, 467, 121, 1051, 11, 234, 46, 530, 529, 1242, 154, 1344, 631, 93, 2, 744, 704, 1615, 211, 822, 326, 1790, 11, 1912, 904, 30, 254, 140, 947, 2167, 22, 8]

cp's OEIS Frontend

A286455 Compound filter (smallest prime dividing n & prime signature of conjugated prime factorization): a(n) = P(A055396(n), A286621(n)), where P(n,k) is sequence A000027 used as a pairing function.

Table of values

List of values