A291882 - cp's OEIS frontend

A291882 a(n) is the least number k such that sigma(k+n) = Sum_{j=1..i} sigma(d_j), where d_j are the divisors of k.

n	a(n)
0	1
1	2
2	10
3	1183
4	4514
5	1179
6	38
7	3325
8	9
9	126855
10	290
11	261
12	18
13	6
14	1930
15	104771947
16	344
17	58
18	326
19	117
20	270754
21	13875
22	32
23	45
24	32
25	74
26	70
27	38
28	18
29	21200761175
30	206
31	1179
32	86
33	16
34	56
35	357
36	85
37	18
38	124
39	39948225
40	361
41	171
42	1118
43	63
44	122
45	38
46	30
47	239267
48	482
49	1367247

[1, 2, 10, 1183, 4514, 1179, 38, 3325, 9, 126855, 290, 261, 18, 6, 1930, 104771947, 344, 58, 326, 117, 270754, 13875, 32, 45, 32, 74, 70, 38, 18, 21200761175, 206, 1179, 86, 16, 56, 357, 85, 18, 124, 39948225, 361, 171, 1118, 63, 122, 38, 30, 239267, 482, 1367247]

cp's OEIS Frontend

A291882 a(n) is the least number k such that sigma(k+n) = Sum_{j=1..i} sigma(d_j), where d_j are the divisors of k.

Table of values

List of values