A286460 - cp's OEIS frontend

A286460 Compound filter (2-adic valuation & sum of the divisors): a(n) = P(A001511(n), A000203(n)), where P(n,k) is sequence A000027 used as a pairing function.

n	a(n)
1	1
2	8
3	7
4	39
5	16
6	80
7	29
8	157
9	79
10	173
11	67
12	438
13	92
14	302
15	277
16	600
17	154
18	782
19	191
20	949
21	497
22	668
23	277
24	1957
25	466
26	905
27	781
28	1656
29	436
30	2630
31	497
32	2284
33	1129
34	1487
35	1129
36	4281
37	704
38	1832
39	1541
40	4282
41	862
42	4658
43	947
44	3658
45	3004
46	2630
47	1129
48	8133
49	1597
50	4373
51	2557
52	4953
53	1432
54	7262
55	2557
56	7507
57	3161
58	4097
59	1771
60	14368
61	1892
62	4658
63	5357
64	8785
65	3487
66	10442
67	2279

[1, 8, 7, 39, 16, 80, 29, 157, 79, 173, 67, 438, 92, 302, 277, 600, 154, 782, 191, 949, 497, 668, 277, 1957, 466, 905, 781, 1656, 436, 2630, 497, 2284, 1129, 1487, 1129, 4281, 704, 1832, 1541, 4282, 862, 4658, 947, 3658, 3004, 2630, 1129, 8133, 1597, 4373, 2557, 4953, 1432, 7262, 2557, 7507, 3161, 4097, 1771, 14368, 1892, 4658, 5357, 8785, 3487, 10442, 2279]

cp's OEIS Frontend

A286460 Compound filter (2-adic valuation & sum of the divisors): a(n) = P(A001511(n), A000203(n)), where P(n,k) is sequence A000027 used as a pairing function.

Table of values

List of values