A291765 - cp's OEIS frontend

A291765 Compound filter (sum of proper divisors & prime signature): a(n) = P(A001065(n), A046523(n)), where P(n,k) is sequence A000027 used as a pairing function.

n	a(n)
1	0
2	2
3	2
4	18
5	2
6	61
7	2
8	98
9	25
10	86
11	2
12	367
13	2
14	115
15	100
16	450
17	2
18	517
19	2
20	550
21	131
22	185
23	2
24	1747
25	42
26	226
27	203
28	769
29	2
30	2527
31	2
32	1922
33	205
34	320
35	166
36	4060
37	2
38	373
39	248
40	2678
41	2
42	3457
43	2
44	1315
45	979
46	491
47	2
48	7579
49	63
50	1474
51	346
52	1642
53	2
54	3982
55	248
56	3805
57	401
58	698
59	2
60	13969
61	2
62	775
63	1367
64	7938
65	295
66	5749
67	2
68	2404
69	523
70	5327
71	2
72	18844
73	2
74	1030
75	1819
76	2839
77	295

[0, 2, 2, 18, 2, 61, 2, 98, 25, 86, 2, 367, 2, 115, 100, 450, 2, 517, 2, 550, 131, 185, 2, 1747, 42, 226, 203, 769, 2, 2527, 2, 1922, 205, 320, 166, 4060, 2, 373, 248, 2678, 2, 3457, 2, 1315, 979, 491, 2, 7579, 63, 1474, 346, 1642, 2, 3982, 248, 3805, 401, 698, 2, 13969, 2, 775, 1367, 7938, 295, 5749, 2, 2404, 523, 5327, 2, 18844, 2, 1030, 1819, 2839, 295]

cp's OEIS Frontend

A291765 Compound filter (sum of proper divisors & prime signature): a(n) = P(A001065(n), A046523(n)), where P(n,k) is sequence A000027 used as a pairing function.

Table of values

List of values