A099631 - cp's OEIS frontend

A099631 Numbers n such that (sigma(n-2)+sigma(n+2))/2 = sigma(n).

n	a(n)
1	5
2	8
3	32
4	44
5	116
6	184
7	356
8	764
9	815
10	1004
11	1012
12	1205
13	1338
14	1345
15	1436
16	2636
17	2876
18	3126
19	3644
20	5156
21	5305
22	5804
23	6236
24	7192
25	7542
26	7556
27	8564
28	9356
29	9404
30	10196
31	10362
32	10904
33	11276
34	11876
35	13436
36	16375
37	17564
38	17636
39	20156
40	25316
41	25964

[5, 8, 32, 44, 116, 184, 356, 764, 815, 1004, 1012, 1205, 1338, 1345, 1436, 2636, 2876, 3126, 3644, 5156, 5305, 5804, 6236, 7192, 7542, 7556, 8564, 9356, 9404, 10196, 10362, 10904, 11276, 11876, 13436, 16375, 17564, 17636, 20156, 25316, 25964]

cp's OEIS Frontend

A099631 Numbers n such that (sigma(n-2)+sigma(n+2))/2 = sigma(n).

Table of values

List of values