A358673 - cp's OEIS frontend

A358673 Numbers k such that for all factorizations of k as xy, the sum (x y') + (x' * y) is carryfree when the addition is done in the primorial base, A049345. Here n' stands for A003415(n), the arithmetic derivative of n.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	11
9	12
10	13
11	14
12	17
13	18
14	19
15	23
16	26
17	27
18	29
19	31
20	37
21	38
22	41
23	43
24	47
25	53
26	59
27	61
28	62
29	63
30	67
31	70
32	71
33	73
34	74
35	79
36	83
37	86
38	89
39	97
40	99
41	101
42	103
43	107
44	109
45	113
46	117
47	122
48	127
49	131
50	134
51	137
52	139
53	146
54	149
55	151
56	153
57	154
58	157
59	158
60	163
61	167
62	173
63	179
64	181
65	186
66	190
67	191
68	193
69	194
70	195

[1, 2, 3, 4, 5, 6, 7, 11, 12, 13, 14, 17, 18, 19, 23, 26, 27, 29, 31, 37, 38, 41, 43, 47, 53, 59, 61, 62, 63, 67, 70, 71, 73, 74, 79, 83, 86, 89, 97, 99, 101, 103, 107, 109, 113, 117, 122, 127, 131, 134, 137, 139, 146, 149, 151, 153, 154, 157, 158, 163, 167, 173, 179, 181, 186, 190, 191, 193, 194, 195]

cp's OEIS Frontend

A358673 Numbers k such that for all factorizations of k as xy, the sum (x y') + (x' * y) is carryfree when the addition is done in the primorial base, A049345. Here n' stands for A003415(n), the arithmetic derivative of n.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	11
9	12
10	13
11	14
12	17
13	18
14	19
15	23
16	26
17	27
18	29
19	31
20	37
21	38
22	41
23	43
24	47
25	53
26	59
27	61
28	62
29	63
30	67
31	70
32	71
33	73
34	74
35	79
36	83
37	86
38	89
39	97
40	99
41	101
42	103
43	107
44	109
45	113
46	117
47	122
48	127
49	131
50	134
51	137
52	139
53	146
54	149
55	151
56	153
57	154
58	157
59	158
60	163
61	167
62	173
63	179
64	181
65	186
66	190
67	191
68	193
69	194
70	195

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	11
9	12
10	13
11	14
12	17
13	18
14	19
15	23
16	26
17	27
18	29
19	31
20	37
21	38
22	41
23	43
24	47
25	53
26	59
27	61
28	62
29	63
30	67
31	70
32	71
33	73
34	74
35	79
36	83
37	86
38	89
39	97
40	99
41	101
42	103
43	107
44	109
45	113
46	117
47	122
48	127
49	131
50	134
51	137
52	139
53	146
54	149
55	151
56	153
57	154
58	157
59	158
60	163
61	167
62	173
63	179
64	181
65	186
66	190
67	191
68	193
69	194
70	195

cp's OEIS Frontend

A358673 Numbers k such that for all factorizations of k as x*y, the sum (x * y') + (x' * y) is carryfree when the addition is done in the primorial base, A049345. Here n' stands for A003415(n), the arithmetic derivative of n.

Table of values

List of values

A358673 Numbers k such that for all factorizations of k as xy, the sum (x y') + (x' * y) is carryfree when the addition is done in the primorial base, A049345. Here n' stands for A003415(n), the arithmetic derivative of n.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	11
9	12
10	13
11	14
12	17
13	18
14	19
15	23
16	26
17	27
18	29
19	31
20	37
21	38
22	41
23	43
24	47
25	53
26	59
27	61
28	62
29	63
30	67
31	70
32	71
33	73
34	74
35	79
36	83
37	86
38	89
39	97
40	99
41	101
42	103
43	107
44	109
45	113
46	117
47	122
48	127
49	131
50	134
51	137
52	139
53	146
54	149
55	151
56	153
57	154
58	157
59	158
60	163
61	167
62	173
63	179
64	181
65	186
66	190
67	191
68	193
69	194
70	195