A351541 - cp's OEIS frontend

A351541 Even numbers k that have an odd prime factor p such that p^(1+valuation(k,p)) divides sigma(k), but p does not divide A003961(k), where A003961 is fully multiplicative with a(p) = nextprime(p), and sigma is the sum of divisors function.

n	a(n)
1	364
2	760
3	1092
4	1148
5	1160
6	1358
7	1490
8	1782
9	1990
10	2324
11	2360
12	2716
13	2912
14	2980
15	3160
16	3276
17	3388
18	3430
19	3444
20	3490
21	3560
22	3564
23	3892
24	3980
25	4004
26	4074
27	4102
28	4360
29	4490
30	4676
31	4990
32	5068
33	5302
34	5320
35	5432
36	5510
37	5560
38	5960
39	5990
40	6188
41	6244
42	6804
43	6860
44	6916
45	6972
46	6980
47	7028
48	7128
49	7160
50	7462
51	7960
52	8120
53	8148

[364, 760, 1092, 1148, 1160, 1358, 1490, 1782, 1990, 2324, 2360, 2716, 2912, 2980, 3160, 3276, 3388, 3430, 3444, 3490, 3560, 3564, 3892, 3980, 4004, 4074, 4102, 4360, 4490, 4676, 4990, 5068, 5302, 5320, 5432, 5510, 5560, 5960, 5990, 6188, 6244, 6804, 6860, 6916, 6972, 6980, 7028, 7128, 7160, 7462, 7960, 8120, 8148]

cp's OEIS Frontend

A351541 Even numbers k that have an odd prime factor p such that p^(1+valuation(k,p)) divides sigma(k), but p does not divide A003961(k), where A003961 is fully multiplicative with a(p) = nextprime(p), and sigma is the sum of divisors function.

Table of values

List of values