A179880 - cp's OEIS frontend

A179880 Numbers h such that h and h-1 have same antiharmonic mean of the numbers k < h such that gcd(k, h) = 1 and simultaneously this mean is not integer.

n	a(n)
1	7
2	66
3	70
4	78
5	130
6	186
7	195
8	211
9	222
10	238
11	255
12	310
13	322
14	331
15	366
16	399
17	418
18	438
19	463
20	474
21	483
22	498
23	534
24	547
25	555
26	571
27	574
28	582
29	598
30	615
31	627
32	663
33	670
34	682
35	691
36	715
37	754
38	759
39	786
40	790
41	795
42	814
43	859
44	894
45	906
46	915
47	967
48	994
49	1038
50	1074
51	1095
52	1102
53	1123

[7, 66, 70, 78, 130, 186, 195, 211, 222, 238, 255, 310, 322, 331, 366, 399, 418, 438, 463, 474, 483, 498, 534, 547, 555, 571, 574, 582, 598, 615, 627, 663, 670, 682, 691, 715, 754, 759, 786, 790, 795, 814, 859, 894, 906, 915, 967, 994, 1038, 1074, 1095, 1102, 1123]

cp's OEIS Frontend

A179880 Numbers h such that h and h-1 have same antiharmonic mean of the numbers k < h such that gcd(k, h) = 1 and simultaneously this mean is not integer.

Table of values

List of values