A067065 - cp's OEIS frontend

A067065 Numbers k such that sigma(sigma(sigma(k))) == 6*sigma(k).

n	a(n)
1	20
2	26
3	41
4	44
5	65
6	83
7	132
8	133
9	140
10	182
11	188
12	195
13	249
14	287
15	299
16	420
17	546
18	564
19	620
20	644
21	764
22	806
23	861
24	897
25	1001
26	1115
27	1169
28	1271
29	28644
30	32172
31	35052
32	39116
33	40796
34	41478
35	42315
36	47492
37	50162
38	51513
39	52143
40	53745
41	54033
42	54483
43	56427
44	56642

[20, 26, 41, 44, 65, 83, 132, 133, 140, 182, 188, 195, 249, 287, 299, 420, 546, 564, 620, 644, 764, 806, 861, 897, 1001, 1115, 1169, 1271, 28644, 32172, 35052, 39116, 40796, 41478, 42315, 47492, 50162, 51513, 52143, 53745, 54033, 54483, 56427, 56642]

cp's OEIS Frontend

A067065 Numbers k such that sigma(sigma(sigma(k))) == 6*sigma(k).

Table of values

List of values