A260823 - cp's OEIS frontend

A260823 Positive integers that are not divisible by any cube greater than 1 and cannot be written as the sum of two cubes of rational numbers.

n	a(n)
1	3
2	4
3	5
4	10
5	11
6	14
7	18
8	21
9	23
10	25
11	29
12	36
13	38
14	39
15	41
16	44
17	45
18	46
19	47
20	52
21	55
22	57
23	59
24	60
25	66
26	73
27	74
28	76
29	77
30	82
31	83
32	93
33	95
34	99
35	100
36	101
37	102
38	109
39	111
40	113
41	116
42	118
43	119
44	121
45	122
46	129
47	131
48	137
49	138
50	145
51	146
52	147
53	148
54	149
55	150
56	154
57	155
58	158
59	165

[3, 4, 5, 10, 11, 14, 18, 21, 23, 25, 29, 36, 38, 39, 41, 44, 45, 46, 47, 52, 55, 57, 59, 60, 66, 73, 74, 76, 77, 82, 83, 93, 95, 99, 100, 101, 102, 109, 111, 113, 116, 118, 119, 121, 122, 129, 131, 137, 138, 145, 146, 147, 148, 149, 150, 154, 155, 158, 165]

cp's OEIS Frontend

A260823 Positive integers that are not divisible by any cube greater than 1 and cannot be written as the sum of two cubes of rational numbers.

Table of values

List of values

n	a(n)
1	3
2	4
3	5
4	10
5	11
6	14
7	18
8	21
9	23
10	25
11	29
12	36
13	38
14	39
15	41
16	44
17	45
18	46
19	47
20	52
21	55
22	57
23	59
24	60
25	66
26	73
27	74
28	76
29	77
30	82
31	83
32	93
33	95
34	99
35	100
36	101
37	102
38	109
39	111
40	113
41	116
42	118
43	119
44	121
45	122
46	129
47	131
48	137
49	138
50	145
51	146
52	147
53	148
54	149
55	150
56	154
57	155
58	158
59	165

n	a(n)
1	3
2	4
3	5
4	10
5	11
6	14
7	18
8	21
9	23
10	25
11	29
12	36
13	38
14	39
15	41
16	44
17	45
18	46
19	47
20	52
21	55
22	57
23	59
24	60
25	66
26	73
27	74
28	76
29	77
30	82
31	83
32	93
33	95
34	99
35	100
36	101
37	102
38	109
39	111
40	113
41	116
42	118
43	119
44	121
45	122
46	129
47	131
48	137
49	138
50	145
51	146
52	147
53	148
54	149
55	150
56	154
57	155
58	158
59	165

n	a(n)
1	3
2	4
3	5
4	10
5	11
6	14
7	18
8	21
9	23
10	25
11	29
12	36
13	38
14	39
15	41
16	44
17	45
18	46
19	47
20	52
21	55
22	57
23	59
24	60
25	66
26	73
27	74
28	76
29	77
30	82
31	83
32	93
33	95
34	99
35	100
36	101
37	102
38	109
39	111
40	113
41	116
42	118
43	119
44	121
45	122
46	129
47	131
48	137
49	138
50	145
51	146
52	147
53	148
54	149
55	150
56	154
57	155
58	158
59	165