A075846 - cp's OEIS frontend

A075846 Numbers k such that sopf(k) = (1/2)*(sopf(k+1) + sopf(k-1)), where sopf(x) = sum of the distinct prime factors of x.

n	a(n)
1	10
2	21
3	35
4	82
5	221
6	296
7	961
8	2665
9	12629
10	13117
11	30317
12	54485
13	99145
14	125750
15	132728
16	142198
17	156379
18	185461
19	225898
20	241057
21	265227
22	265643
23	280918
24	281396
25	284531
26	326698
27	379331
28	393335
29	400685
30	437241
31	437999
32	548101
33	584502
34	641561

[10, 21, 35, 82, 221, 296, 961, 2665, 12629, 13117, 30317, 54485, 99145, 125750, 132728, 142198, 156379, 185461, 225898, 241057, 265227, 265643, 280918, 281396, 284531, 326698, 379331, 393335, 400685, 437241, 437999, 548101, 584502, 641561]

cp's OEIS Frontend

A075846 Numbers k such that sopf(k) = (1/2)*(sopf(k+1) + sopf(k-1)), where sopf(x) = sum of the distinct prime factors of x.

Table of values

List of values