A387159 - cp's OEIS frontend

A387159 Odd numbers k such that A173557(k) = A173557(sigma(k)), where A173557(n) is multiplicative with a(p^e) = p-1 and sigma is the sum of divisors function.

n	a(n)
1	1
2	63
3	135
4	351
5	875
6	891
7	999
8	1647
9	1859
10	1971
11	4239
12	5211
13	7479
14	8451
15	10719
16	11367
17	12339
18	14607
19	16317
20	16551
21	17847
22	18171
23	19791
24	20439
25	22103
26	23679
27	26919
28	27951
29	29511
30	31131
31	31407
32	31487
33	32427
34	32751
35	33399
36	35667
37	37287
38	39231
39	43767
40	44739
41	47331
42	50571
43	52191
44	53811
45	54459
46	57319
47	57699
48	63207
49	66771

[1, 63, 135, 351, 875, 891, 999, 1647, 1859, 1971, 4239, 5211, 7479, 8451, 10719, 11367, 12339, 14607, 16317, 16551, 17847, 18171, 19791, 20439, 22103, 23679, 26919, 27951, 29511, 31131, 31407, 31487, 32427, 32751, 33399, 35667, 37287, 39231, 43767, 44739, 47331, 50571, 52191, 53811, 54459, 57319, 57699, 63207, 66771]

cp's OEIS Frontend

A387159 Odd numbers k such that A173557(k) = A173557(sigma(k)), where A173557(n) is multiplicative with a(p^e) = p-1 and sigma is the sum of divisors function.

Table of values

List of values