A262086 - cp's OEIS frontend

A262086 Numbers k such that phi(k + 10) = phi(k) + 10, where phi(k) = A000010(k) is Euler's totient function.

n	a(n)
1	3
2	7
3	13
4	19
5	31
6	36
7	37
8	43
9	61
10	73
11	79
12	97
13	103
14	127
15	139
16	157
17	163
18	181
19	223
20	229
21	241
22	271
23	283
24	307
25	337
26	349
27	373
28	379
29	409
30	421
31	433
32	439
33	457
34	499
35	547
36	577
37	607
38	631
39	643
40	673
41	691
42	709
43	733
44	751
45	787
46	811
47	829
48	853
49	877
50	919
51	937
52	967

[3, 7, 13, 19, 31, 36, 37, 43, 61, 73, 79, 97, 103, 127, 139, 157, 163, 181, 223, 229, 241, 271, 283, 307, 337, 349, 373, 379, 409, 421, 433, 439, 457, 499, 547, 577, 607, 631, 643, 673, 691, 709, 733, 751, 787, 811, 829, 853, 877, 919, 937, 967]

cp's OEIS Frontend

A262086 Numbers k such that phi(k + 10) = phi(k) + 10, where phi(k) = A000010(k) is Euler's totient function.

Table of values

List of values

n	a(n)
1	3
2	7
3	13
4	19
5	31
6	36
7	37
8	43
9	61
10	73
11	79
12	97
13	103
14	127
15	139
16	157
17	163
18	181
19	223
20	229
21	241
22	271
23	283
24	307
25	337
26	349
27	373
28	379
29	409
30	421
31	433
32	439
33	457
34	499
35	547
36	577
37	607
38	631
39	643
40	673
41	691
42	709
43	733
44	751
45	787
46	811
47	829
48	853
49	877
50	919
51	937
52	967

n	a(n)
1	3
2	7
3	13
4	19
5	31
6	36
7	37
8	43
9	61
10	73
11	79
12	97
13	103
14	127
15	139
16	157
17	163
18	181
19	223
20	229
21	241
22	271
23	283
24	307
25	337
26	349
27	373
28	379
29	409
30	421
31	433
32	439
33	457
34	499
35	547
36	577
37	607
38	631
39	643
40	673
41	691
42	709
43	733
44	751
45	787
46	811
47	829
48	853
49	877
50	919
51	937
52	967

n	a(n)
1	3
2	7
3	13
4	19
5	31
6	36
7	37
8	43
9	61
10	73
11	79
12	97
13	103
14	127
15	139
16	157
17	163
18	181
19	223
20	229
21	241
22	271
23	283
24	307
25	337
26	349
27	373
28	379
29	409
30	421
31	433
32	439
33	457
34	499
35	547
36	577
37	607
38	631
39	643
40	673
41	691
42	709
43	733
44	751
45	787
46	811
47	829
48	853
49	877
50	919
51	937
52	967