A359821 - cp's OEIS frontend

A359821 Numbers k whose arithmetic derivative, A003415(k), has the opposite parity to k.

n	a(n)
1	1
2	2
3	6
4	9
5	10
6	14
7	15
8	18
9	21
10	22
11	25
12	26
13	30
14	33
15	34
16	35
17	38
18	39
19	42
20	46
21	49
22	50
23	51
24	54
25	55
26	57
27	58
28	62
29	65
30	66
31	69
32	70
33	74
34	77
35	78
36	81
37	82
38	85
39	86
40	87
41	90
42	91
43	93
44	94
45	95
46	98
47	102
48	106
49	110
50	111
51	114
52	115
53	118
54	119
55	121
56	122
57	123
58	126
59	129
60	130
61	133
62	134
63	135
64	138
65	141
66	142
67	143
68	145
69	146
70	150
71	154

[1, 2, 6, 9, 10, 14, 15, 18, 21, 22, 25, 26, 30, 33, 34, 35, 38, 39, 42, 46, 49, 50, 51, 54, 55, 57, 58, 62, 65, 66, 69, 70, 74, 77, 78, 81, 82, 85, 86, 87, 90, 91, 93, 94, 95, 98, 102, 106, 110, 111, 114, 115, 118, 119, 121, 122, 123, 126, 129, 130, 133, 134, 135, 138, 141, 142, 143, 145, 146, 150, 154]

cp's OEIS Frontend

A359821 Numbers k whose arithmetic derivative, A003415(k), has the opposite parity to k.

Table of values

List of values

n	a(n)
1	1
2	2
3	6
4	9
5	10
6	14
7	15
8	18
9	21
10	22
11	25
12	26
13	30
14	33
15	34
16	35
17	38
18	39
19	42
20	46
21	49
22	50
23	51
24	54
25	55
26	57
27	58
28	62
29	65
30	66
31	69
32	70
33	74
34	77
35	78
36	81
37	82
38	85
39	86
40	87
41	90
42	91
43	93
44	94
45	95
46	98
47	102
48	106
49	110
50	111
51	114
52	115
53	118
54	119
55	121
56	122
57	123
58	126
59	129
60	130
61	133
62	134
63	135
64	138
65	141
66	142
67	143
68	145
69	146
70	150
71	154

n	a(n)
1	1
2	2
3	6
4	9
5	10
6	14
7	15
8	18
9	21
10	22
11	25
12	26
13	30
14	33
15	34
16	35
17	38
18	39
19	42
20	46
21	49
22	50
23	51
24	54
25	55
26	57
27	58
28	62
29	65
30	66
31	69
32	70
33	74
34	77
35	78
36	81
37	82
38	85
39	86
40	87
41	90
42	91
43	93
44	94
45	95
46	98
47	102
48	106
49	110
50	111
51	114
52	115
53	118
54	119
55	121
56	122
57	123
58	126
59	129
60	130
61	133
62	134
63	135
64	138
65	141
66	142
67	143
68	145
69	146
70	150
71	154

n	a(n)
1	1
2	2
3	6
4	9
5	10
6	14
7	15
8	18
9	21
10	22
11	25
12	26
13	30
14	33
15	34
16	35
17	38
18	39
19	42
20	46
21	49
22	50
23	51
24	54
25	55
26	57
27	58
28	62
29	65
30	66
31	69
32	70
33	74
34	77
35	78
36	81
37	82
38	85
39	86
40	87
41	90
42	91
43	93
44	94
45	95
46	98
47	102
48	106
49	110
50	111
51	114
52	115
53	118
54	119
55	121
56	122
57	123
58	126
59	129
60	130
61	133
62	134
63	135
64	138
65	141
66	142
67	143
68	145
69	146
70	150
71	154