A272883 - cp's OEIS frontend

A272883 Numbers m such that sigma_k(x) = m has no solution for any k > 0.

n	a(n)
1	2
2	11
3	16
4	19
5	22
6	23
7	25
8	27
9	29
10	34
11	35
12	37
13	41
14	43
15	45
16	46
17	47
18	49
19	51
20	52
21	53
22	55
23	58
24	59
25	61
26	64
27	66
28	67
29	69
30	70
31	71
32	75
33	76
34	77
35	79
36	81
37	83
38	86
39	87
40	88
41	89
42	92
43	94
44	95
45	97
46	99
47	100
48	101
49	103
50	105
51	106
52	107
53	109
54	111
55	113
56	115
57	116
58	117
59	118
60	119
61	123
62	125

[2, 11, 16, 19, 22, 23, 25, 27, 29, 34, 35, 37, 41, 43, 45, 46, 47, 49, 51, 52, 53, 55, 58, 59, 61, 64, 66, 67, 69, 70, 71, 75, 76, 77, 79, 81, 83, 86, 87, 88, 89, 92, 94, 95, 97, 99, 100, 101, 103, 105, 106, 107, 109, 111, 113, 115, 116, 117, 118, 119, 123, 125]

cp's OEIS Frontend

A272883 Numbers m such that sigma_k(x) = m has no solution for any k > 0.

Table of values

List of values

n	a(n)
1	2
2	11
3	16
4	19
5	22
6	23
7	25
8	27
9	29
10	34
11	35
12	37
13	41
14	43
15	45
16	46
17	47
18	49
19	51
20	52
21	53
22	55
23	58
24	59
25	61
26	64
27	66
28	67
29	69
30	70
31	71
32	75
33	76
34	77
35	79
36	81
37	83
38	86
39	87
40	88
41	89
42	92
43	94
44	95
45	97
46	99
47	100
48	101
49	103
50	105
51	106
52	107
53	109
54	111
55	113
56	115
57	116
58	117
59	118
60	119
61	123
62	125

n	a(n)
1	2
2	11
3	16
4	19
5	22
6	23
7	25
8	27
9	29
10	34
11	35
12	37
13	41
14	43
15	45
16	46
17	47
18	49
19	51
20	52
21	53
22	55
23	58
24	59
25	61
26	64
27	66
28	67
29	69
30	70
31	71
32	75
33	76
34	77
35	79
36	81
37	83
38	86
39	87
40	88
41	89
42	92
43	94
44	95
45	97
46	99
47	100
48	101
49	103
50	105
51	106
52	107
53	109
54	111
55	113
56	115
57	116
58	117
59	118
60	119
61	123
62	125

n	a(n)
1	2
2	11
3	16
4	19
5	22
6	23
7	25
8	27
9	29
10	34
11	35
12	37
13	41
14	43
15	45
16	46
17	47
18	49
19	51
20	52
21	53
22	55
23	58
24	59
25	61
26	64
27	66
28	67
29	69
30	70
31	71
32	75
33	76
34	77
35	79
36	81
37	83
38	86
39	87
40	88
41	89
42	92
43	94
44	95
45	97
46	99
47	100
48	101
49	103
50	105
51	106
52	107
53	109
54	111
55	113
56	115
57	116
58	117
59	118
60	119
61	123
62	125