A215285 - cp's OEIS frontend

A215285 Numbers m such that Sum_{k=1..m} (m - k | k) = phi(m), where (i|j) is the Kronecker symbol and phi(m) is the Euler totient function.

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	9
7	16
8	36
9	64
10	100
11	144
12	196
13	256
14	324
15	400
16	484
17	576
18	676
19	784
20	900
21	1024
22	1156
23	1296
24	1444
25	1600
26	1764
27	1936
28	2116
29	2304
30	2500
31	2704
32	2916
33	3136
34	3364
35	3600
36	3844
37	4096
38	4356
39	4624
40	4900
41	5184
42	5476
43	5776
44	6084
45	6400
46	6724
47	7056
48	7396
49	7744

[1, 2, 3, 4, 6, 9, 16, 36, 64, 100, 144, 196, 256, 324, 400, 484, 576, 676, 784, 900, 1024, 1156, 1296, 1444, 1600, 1764, 1936, 2116, 2304, 2500, 2704, 2916, 3136, 3364, 3600, 3844, 4096, 4356, 4624, 4900, 5184, 5476, 5776, 6084, 6400, 6724, 7056, 7396, 7744]

cp's OEIS Frontend

A215285 Numbers m such that Sum_{k=1..m} (m - k | k) = phi(m), where (i|j) is the Kronecker symbol and phi(m) is the Euler totient function.

Table of values

List of values