A091896 - cp's OEIS frontend

A091896 Numbers n such that there exists no k for which the denominator of d(k)/k is n, where d = A000005 is the number-of-divisors function.

n	a(n)
1	18
2	30
3	72
4	112
5	144
6	243
7	252
8	288
9	294
10	336
11	360
12	396
13	468
14	504
15	576
16	612
17	616
18	625
19	684
20	726
21	728
22	792
23	810
24	828
25	840
26	936
27	952
28	960
29	1014
30	1044
31	1064
32	1116
33	1224
34	1250
35	1260
36	1288
37	1332
38	1350
39	1368
40	1386
41	1440
42	1476
43	1548
44	1568
45	1584
46	1624
47	1638
48	1656

[18, 30, 72, 112, 144, 243, 252, 288, 294, 336, 360, 396, 468, 504, 576, 612, 616, 625, 684, 726, 728, 792, 810, 828, 840, 936, 952, 960, 1014, 1044, 1064, 1116, 1224, 1250, 1260, 1288, 1332, 1350, 1368, 1386, 1440, 1476, 1548, 1568, 1584, 1624, 1638, 1656]

cp's OEIS Frontend

A091896 Numbers n such that there exists no k for which the denominator of d(k)/k is n, where d = A000005 is the number-of-divisors function.

Table of values

List of values