A358675 - cp's OEIS frontend

A358675 Numbers k such that for all nontrivial factorizations of k as xy, the sum (x y') + (x' * y) will generate at least one carry when the addition is done in the primorial base. Here n' stands for A003415(n), the arithmetic derivative of n.

n	a(n)
1	8
2	9
3	10
4	15
5	16
6	20
7	21
8	22
9	25
10	28
11	30
12	33
13	34
14	35
15	39
16	44
17	46
18	49
19	50
20	51
21	55
22	56
23	57
24	58
25	65
26	66
27	68
28	69
29	77
30	81
31	82
32	84
33	85
34	87
35	91
36	92
37	93
38	94
39	95
40	102
41	106
42	108
43	111
44	112
45	115
46	116
47	118
48	119
49	120
50	121
51	123
52	125
53	128
54	129
55	133
56	136
57	138
58	141
59	142
60	143
61	145
62	147
63	148
64	155
65	156
66	159
67	160
68	161

[8, 9, 10, 15, 16, 20, 21, 22, 25, 28, 30, 33, 34, 35, 39, 44, 46, 49, 50, 51, 55, 56, 57, 58, 65, 66, 68, 69, 77, 81, 82, 84, 85, 87, 91, 92, 93, 94, 95, 102, 106, 108, 111, 112, 115, 116, 118, 119, 120, 121, 123, 125, 128, 129, 133, 136, 138, 141, 142, 143, 145, 147, 148, 155, 156, 159, 160, 161]

cp's OEIS Frontend

A358675 Numbers k such that for all nontrivial factorizations of k as xy, the sum (x y') + (x' * y) will generate at least one carry when the addition is done in the primorial base. Here n' stands for A003415(n), the arithmetic derivative of n.

Table of values

List of values

n	a(n)
1	8
2	9
3	10
4	15
5	16
6	20
7	21
8	22
9	25
10	28
11	30
12	33
13	34
14	35
15	39
16	44
17	46
18	49
19	50
20	51
21	55
22	56
23	57
24	58
25	65
26	66
27	68
28	69
29	77
30	81
31	82
32	84
33	85
34	87
35	91
36	92
37	93
38	94
39	95
40	102
41	106
42	108
43	111
44	112
45	115
46	116
47	118
48	119
49	120
50	121
51	123
52	125
53	128
54	129
55	133
56	136
57	138
58	141
59	142
60	143
61	145
62	147
63	148
64	155
65	156
66	159
67	160
68	161

n	a(n)
1	8
2	9
3	10
4	15
5	16
6	20
7	21
8	22
9	25
10	28
11	30
12	33
13	34
14	35
15	39
16	44
17	46
18	49
19	50
20	51
21	55
22	56
23	57
24	58
25	65
26	66
27	68
28	69
29	77
30	81
31	82
32	84
33	85
34	87
35	91
36	92
37	93
38	94
39	95
40	102
41	106
42	108
43	111
44	112
45	115
46	116
47	118
48	119
49	120
50	121
51	123
52	125
53	128
54	129
55	133
56	136
57	138
58	141
59	142
60	143
61	145
62	147
63	148
64	155
65	156
66	159
67	160
68	161

cp's OEIS Frontend

A358675 Numbers k such that for all nontrivial factorizations of k as x*y, the sum (x * y') + (x' * y) will generate at least one carry when the addition is done in the primorial base. Here n' stands for A003415(n), the arithmetic derivative of n.

Table of values

List of values

A358675 Numbers k such that for all nontrivial factorizations of k as xy, the sum (x y') + (x' * y) will generate at least one carry when the addition is done in the primorial base. Here n' stands for A003415(n), the arithmetic derivative of n.

n	a(n)
1	8
2	9
3	10
4	15
5	16
6	20
7	21
8	22
9	25
10	28
11	30
12	33
13	34
14	35
15	39
16	44
17	46
18	49
19	50
20	51
21	55
22	56
23	57
24	58
25	65
26	66
27	68
28	69
29	77
30	81
31	82
32	84
33	85
34	87
35	91
36	92
37	93
38	94
39	95
40	102
41	106
42	108
43	111
44	112
45	115
46	116
47	118
48	119
49	120
50	121
51	123
52	125
53	128
54	129
55	133
56	136
57	138
58	141
59	142
60	143
61	145
62	147
63	148
64	155
65	156
66	159
67	160
68	161