A227982 - cp's OEIS frontend

A227982 Numbers n such that sigma(n+1) - sigma(n-1) > sigma(n); where sigma(n) = A000203(n) = sum of the divisors of n.

n	a(n)
1	47
2	59
3	83
4	107
5	119
6	143
7	167
8	179
9	215
10	239
11	251
12	263
13	299
14	335
15	359
16	383
17	395
18	419
19	431
20	467
21	479
22	503
23	527
24	539
25	587
26	599
27	623
28	629
29	647
30	659
31	671
32	719
33	755
34	767
35	779
36	839
37	863
38	887
39	899
40	923
41	935
42	959
43	983
44	1007
45	1019
46	1055
47	1079
48	1091
49	1103
50	1139
51	1175

[47, 59, 83, 107, 119, 143, 167, 179, 215, 239, 251, 263, 299, 335, 359, 383, 395, 419, 431, 467, 479, 503, 527, 539, 587, 599, 623, 629, 647, 659, 671, 719, 755, 767, 779, 839, 863, 887, 899, 923, 935, 959, 983, 1007, 1019, 1055, 1079, 1091, 1103, 1139, 1175]

cp's OEIS Frontend

A227982 Numbers n such that sigma(n+1) - sigma(n-1) > sigma(n); where sigma(n) = A000203(n) = sum of the divisors of n.

Table of values

List of values