A323918 - cp's OEIS frontend

A323918 Numbers k with exactly two distinct prime divisors and such that cototient(k) is a square, where: k = p^(2s) * q^(2t+1) with s >= 1, t >= 0, p <> q primes and such that p * (p+q-1) = M^2.

n	a(n)
1	28
2	68
3	112
4	124
5	272
6	284
7	388
8	448
9	496
10	508
11	657
12	796
13	964
14	1025
15	1088
16	1136
17	1348
18	1372
19	1552
20	1792
21	1796
22	1984
23	2032
24	2169
25	2308
26	2588
27	3184
28	3524
29	3856
30	3868
31	4352
32	4544
33	4604
34	4996
35	5392
36	5488
37	5913
38	6025
39	6057
40	6208
41	6268
42	7168
43	7184
44	7936
45	8128
46	9232
47	9244

[28, 68, 112, 124, 272, 284, 388, 448, 496, 508, 657, 796, 964, 1025, 1088, 1136, 1348, 1372, 1552, 1792, 1796, 1984, 2032, 2169, 2308, 2588, 3184, 3524, 3856, 3868, 4352, 4544, 4604, 4996, 5392, 5488, 5913, 6025, 6057, 6208, 6268, 7168, 7184, 7936, 8128, 9232, 9244]

cp's OEIS Frontend

A323918 Numbers k with exactly two distinct prime divisors and such that cototient(k) is a square, where: k = p^(2s) * q^(2t+1) with s >= 1, t >= 0, p <> q primes and such that p * (p+q-1) = M^2.

Table of values

List of values