A351534 - cp's OEIS frontend

A351534 Odd numbers for which sigma(k) is congruent to 2 modulo 4 and the 3-adic valuation of k is one larger than the 3-adic valuation of sigma(k).

n	a(n)
1	45
2	261
3	369
4	909
5	1017
6	1233
7	1341
8	1557
9	2313
10	2529
11	2637
12	2853
13	3177
14	3501
15	3609
16	4149
17	4293
18	4581
19	5121
20	5445
21	5553
22	5733
23	5769
24	5877
25	6093
26	6525
27	6849
28	7173
29	7389
30	7713
31	8361
32	8469
33	8793
34	9117
35	9225
36	9441
37	9981
38	10629
39	10737
40	10953
41	11061
42	11601
43	11709
44	12249
45	12357
46	12681
47	12897
48	13005
49	13329
50	13977
51	14517

[45, 261, 369, 909, 1017, 1233, 1341, 1557, 2313, 2529, 2637, 2853, 3177, 3501, 3609, 4149, 4293, 4581, 5121, 5445, 5553, 5733, 5769, 5877, 6093, 6525, 6849, 7173, 7389, 7713, 8361, 8469, 8793, 9117, 9225, 9441, 9981, 10629, 10737, 10953, 11061, 11601, 11709, 12249, 12357, 12681, 12897, 13005, 13329, 13977, 14517]

cp's OEIS Frontend

A351534 Odd numbers for which sigma(k) is congruent to 2 modulo 4 and the 3-adic valuation of k is one larger than the 3-adic valuation of sigma(k).

Table of values

List of values