A129317 - cp's OEIS frontend

A129317 The second of the pair of consecutive integers k and k+1 such that sopfr(k) divides sopfr(k+1), where sopfr(k) is the sum of the prime factors of k, counting multiplicity.

n	a(n)
1	6
2	9
3	16
4	78
5	126
6	161
7	253
8	497
9	715
10	949
11	981
12	1046
13	1054
14	1261
15	1331
16	1379
17	1405
18	1431
19	1509
20	1521
21	1611
22	1751
23	1863
24	1891
25	2171
26	2492
27	2681
28	2822
29	3095
30	3101
31	3249
32	3401
33	3592
34	3611
35	3653
36	3809
37	4186
38	4192
39	4385
40	4453
41	4501
42	4599
43	4907
44	5121
45	5146

[6, 9, 16, 78, 126, 161, 253, 497, 715, 949, 981, 1046, 1054, 1261, 1331, 1379, 1405, 1431, 1509, 1521, 1611, 1751, 1863, 1891, 2171, 2492, 2681, 2822, 3095, 3101, 3249, 3401, 3592, 3611, 3653, 3809, 4186, 4192, 4385, 4453, 4501, 4599, 4907, 5121, 5146]

cp's OEIS Frontend

A129317 The second of the pair of consecutive integers k and k+1 such that sopfr(k) divides sopfr(k+1), where sopfr(k) is the sum of the prime factors of k, counting multiplicity.

Table of values

List of values