A348938 - cp's OEIS frontend

A348938 Odd numbers k for which A064989(sigma(k)) < A064989(k), and which are of the form p^(1+4k) * r^2, where p is prime of the form 1+4m, r > 1, and gcd(p,r) = 1.

n	a(n)
1	153
2	245
3	261
4	369
5	425
6	477
7	637
8	725
9	801
10	833
11	845
12	873
13	909
14	981
15	1017
16	1025
17	1233
18	1325
19	1341
20	1377
21	1421
22	1557
23	1573
24	1629
25	1773
26	1805
27	1813
28	2009
29	2057
30	2061
31	2097
32	2169
33	2225
34	2313
35	2349
36	2421
37	2425
38	2525
39	2529
40	2597
41	2637
42	2645
43	2725
44	2853
45	2873
46	2989
47	3141
48	3177
49	3321
50	3357
51	3425
52	3501
53	3509
54	3577
55	3609
56	3681

[153, 245, 261, 369, 425, 477, 637, 725, 801, 833, 845, 873, 909, 981, 1017, 1025, 1233, 1325, 1341, 1377, 1421, 1557, 1573, 1629, 1773, 1805, 1813, 2009, 2057, 2061, 2097, 2169, 2225, 2313, 2349, 2421, 2425, 2525, 2529, 2597, 2637, 2645, 2725, 2853, 2873, 2989, 3141, 3177, 3321, 3357, 3425, 3501, 3509, 3577, 3609, 3681]

cp's OEIS Frontend

A348938 Odd numbers k for which A064989(sigma(k)) < A064989(k), and which are of the form p^(1+4k) * r^2, where p is prime of the form 1+4m, r > 1, and gcd(p,r) = 1.

Table of values

List of values