A354357 - cp's OEIS frontend

A354357 Numbers k, not divisible by 2 or 3, such that sigma(k) is 3-smooth (has no larger prime factors than 3).

n	a(n)
1	1
2	5
3	7
4	11
5	17
6	23
7	31
8	35
9	47
10	53
11	55
12	71
13	77
14	85
15	107
16	115
17	119
18	127
19	155
20	161
21	187
22	191
23	217
24	235
25	253
26	265
27	329
28	341
29	355
30	371
31	383
32	385
33	391
34	431
35	497
36	517
37	527
38	535
39	583
40	595
41	635
42	647
43	713
44	749
45	781
46	799
47	805
48	863
49	889
50	901
51	935
52	955
53	971
54	1081
55	1085
56	1151
57	1177
58	1207
59	1219
60	1265
61	1309
62	1337
63	1397
64	1457
65	1633

[1, 5, 7, 11, 17, 23, 31, 35, 47, 53, 55, 71, 77, 85, 107, 115, 119, 127, 155, 161, 187, 191, 217, 235, 253, 265, 329, 341, 355, 371, 383, 385, 391, 431, 497, 517, 527, 535, 583, 595, 635, 647, 713, 749, 781, 799, 805, 863, 889, 901, 935, 955, 971, 1081, 1085, 1151, 1177, 1207, 1219, 1265, 1309, 1337, 1397, 1457, 1633]

cp's OEIS Frontend

A354357 Numbers k, not divisible by 2 or 3, such that sigma(k) is 3-smooth (has no larger prime factors than 3).

Table of values

List of values