A330736 - cp's OEIS frontend

A330736 Numbers k such that k is not a multiple of A309639(k), where A309639(k) is the index of the least harmonic number H_i whose denominator (A002805) is divisible by k.

n	a(n)
1	21
2	24
3	42
4	69
5	84
6	105
7	115
8	120
9	138
10	168
11	171
12	201
13	207
14	210
15	225
16	230
17	276
18	301
19	329
20	342
21	345
22	402
23	407
24	414
25	420
26	450
27	451
28	460
29	473
30	483
31	505
32	515
33	602
34	603
35	605
36	639
37	658
38	684
39	690
40	759
41	804
42	805
43	814
44	828
45	840
46	855
47	869
48	891
49	897
50	900
51	902
52	903
53	913
54	920
55	946
56	966
57	987
58	1005
59	1010
60	1030
61	1035
62	1173
63	1197

[21, 24, 42, 69, 84, 105, 115, 120, 138, 168, 171, 201, 207, 210, 225, 230, 276, 301, 329, 342, 345, 402, 407, 414, 420, 450, 451, 460, 473, 483, 505, 515, 602, 603, 605, 639, 658, 684, 690, 759, 804, 805, 814, 828, 840, 855, 869, 891, 897, 900, 902, 903, 913, 920, 946, 966, 987, 1005, 1010, 1030, 1035, 1173, 1197]

cp's OEIS Frontend

A330736 Numbers k such that k is not a multiple of A309639(k), where A309639(k) is the index of the least harmonic number H_i whose denominator (A002805) is divisible by k.

Table of values

List of values