A347881 - cp's OEIS frontend

A347881 Odd numbers k for which A003415(sigma(k^2)) > k^2, where A003415 is the arithmetic derivative.

n	a(n)
1	105
2	201
3	231
4	237
5	259
6	273
7	315
8	333
9	399
10	429
11	455
12	469
13	483
14	525
15	553
16	555
17	585
18	603
19	627
20	651
21	665
22	693
23	711
24	741
25	763
26	777
27	819
28	855
29	871
30	903
31	975
32	1001
33	1005
34	1027
35	1057
36	1071
37	1085
38	1113
39	1119
40	1141
41	1155
42	1185
43	1197
44	1209
45	1221
46	1235
47	1273
48	1281
49	1287
50	1295
51	1351
52	1365
53	1395
54	1407
55	1443
56	1449
57	1463
58	1467
59	1501

[105, 201, 231, 237, 259, 273, 315, 333, 399, 429, 455, 469, 483, 525, 553, 555, 585, 603, 627, 651, 665, 693, 711, 741, 763, 777, 819, 855, 871, 903, 975, 1001, 1005, 1027, 1057, 1071, 1085, 1113, 1119, 1141, 1155, 1185, 1197, 1209, 1221, 1235, 1273, 1281, 1287, 1295, 1351, 1365, 1395, 1407, 1443, 1449, 1463, 1467, 1501]

cp's OEIS Frontend

A347881 Odd numbers k for which A003415(sigma(k^2)) > k^2, where A003415 is the arithmetic derivative.

Table of values

List of values