A053247 - cp's OEIS frontend

A053247 Second differences of sigma(n) that are positive.

n	a(n)
1	2
2	7
3	11
4	7
5	22
6	24
7	7
8	34
9	41
10	14
11	48
12	40
13	18
14	68
15	71
16	21
17	49
18	75
19	38
20	102
21	92
22	100
23	103
24	47
25	110
26	96
27	50
28	138
29	140
30	15
31	103
32	134
33	78
34	195
35	161
36	6
37	116
38	194
39	70
40	182
41	140
42	72
43	234
44	178
45	56
46	156
47	227
48	76
49	229
50	218
51	226
52	276
53	160
54	260
55	162
56	26
57	252
58	280
59	74
60	224

[2, 7, 11, 7, 22, 24, 7, 34, 41, 14, 48, 40, 18, 68, 71, 21, 49, 75, 38, 102, 92, 100, 103, 47, 110, 96, 50, 138, 140, 15, 103, 134, 78, 195, 161, 6, 116, 194, 70, 182, 140, 72, 234, 178, 56, 156, 227, 76, 229, 218, 226, 276, 160, 260, 162, 26, 252, 280, 74, 224]

cp's OEIS Frontend

A053247 Second differences of sigma(n) that are positive.

Table of values

List of values

n	a(n)
1	2
2	7
3	11
4	7
5	22
6	24
7	7
8	34
9	41
10	14
11	48
12	40
13	18
14	68
15	71
16	21
17	49
18	75
19	38
20	102
21	92
22	100
23	103
24	47
25	110
26	96
27	50
28	138
29	140
30	15
31	103
32	134
33	78
34	195
35	161
36	6
37	116
38	194
39	70
40	182
41	140
42	72
43	234
44	178
45	56
46	156
47	227
48	76
49	229
50	218
51	226
52	276
53	160
54	260
55	162
56	26
57	252
58	280
59	74
60	224

n	a(n)
1	2
2	7
3	11
4	7
5	22
6	24
7	7
8	34
9	41
10	14
11	48
12	40
13	18
14	68
15	71
16	21
17	49
18	75
19	38
20	102
21	92
22	100
23	103
24	47
25	110
26	96
27	50
28	138
29	140
30	15
31	103
32	134
33	78
34	195
35	161
36	6
37	116
38	194
39	70
40	182
41	140
42	72
43	234
44	178
45	56
46	156
47	227
48	76
49	229
50	218
51	226
52	276
53	160
54	260
55	162
56	26
57	252
58	280
59	74
60	224

n	a(n)
1	2
2	7
3	11
4	7
5	22
6	24
7	7
8	34
9	41
10	14
11	48
12	40
13	18
14	68
15	71
16	21
17	49
18	75
19	38
20	102
21	92
22	100
23	103
24	47
25	110
26	96
27	50
28	138
29	140
30	15
31	103
32	134
33	78
34	195
35	161
36	6
37	116
38	194
39	70
40	182
41	140
42	72
43	234
44	178
45	56
46	156
47	227
48	76
49	229
50	218
51	226
52	276
53	160
54	260
55	162
56	26
57	252
58	280
59	74
60	224