A374038 - cp's OEIS frontend

A374038 Numbers k such that A328845(k) and A328846(k) are not both even, where A328845 and A328846 are the first and second Fibonacci-based variants of the arithmetic derivative.

n	a(n)
1	2
2	3
3	5
4	6
5	7
6	10
7	11
8	13
9	14
10	15
11	17
12	18
13	19
14	21
15	22
16	23
17	26
18	27
19	29
20	30
21	31
22	33
23	34
24	35
25	37
26	38
27	39
28	41
29	42
30	43
31	45
32	46
33	47
34	50
35	51
36	53
37	54
38	57
39	58
40	59
41	61
42	62
43	63
44	66
45	67
46	69
47	70
48	71
49	73
50	74
51	75
52	77
53	78
54	79
55	82
56	83
57	85
58	86
59	87
60	89
61	90
62	91
63	93
64	94
65	97
66	98
67	99
68	101
69	102
70	103
71	106
72	107
73	109
74	110
75	111
76	113
77	114
78	117

[2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 17, 18, 19, 21, 22, 23, 26, 27, 29, 30, 31, 33, 34, 35, 37, 38, 39, 41, 42, 43, 45, 46, 47, 50, 51, 53, 54, 57, 58, 59, 61, 62, 63, 66, 67, 69, 70, 71, 73, 74, 75, 77, 78, 79, 82, 83, 85, 86, 87, 89, 90, 91, 93, 94, 97, 98, 99, 101, 102, 103, 106, 107, 109, 110, 111, 113, 114, 117]

cp's OEIS Frontend

A374038 Numbers k such that A328845(k) and A328846(k) are not both even, where A328845 and A328846 are the first and second Fibonacci-based variants of the arithmetic derivative.

Table of values

List of values

n	a(n)
1	2
2	3
3	5
4	6
5	7
6	10
7	11
8	13
9	14
10	15
11	17
12	18
13	19
14	21
15	22
16	23
17	26
18	27
19	29
20	30
21	31
22	33
23	34
24	35
25	37
26	38
27	39
28	41
29	42
30	43
31	45
32	46
33	47
34	50
35	51
36	53
37	54
38	57
39	58
40	59
41	61
42	62
43	63
44	66
45	67
46	69
47	70
48	71
49	73
50	74
51	75
52	77
53	78
54	79
55	82
56	83
57	85
58	86
59	87
60	89
61	90
62	91
63	93
64	94
65	97
66	98
67	99
68	101
69	102
70	103
71	106
72	107
73	109
74	110
75	111
76	113
77	114
78	117

n	a(n)
1	2
2	3
3	5
4	6
5	7
6	10
7	11
8	13
9	14
10	15
11	17
12	18
13	19
14	21
15	22
16	23
17	26
18	27
19	29
20	30
21	31
22	33
23	34
24	35
25	37
26	38
27	39
28	41
29	42
30	43
31	45
32	46
33	47
34	50
35	51
36	53
37	54
38	57
39	58
40	59
41	61
42	62
43	63
44	66
45	67
46	69
47	70
48	71
49	73
50	74
51	75
52	77
53	78
54	79
55	82
56	83
57	85
58	86
59	87
60	89
61	90
62	91
63	93
64	94
65	97
66	98
67	99
68	101
69	102
70	103
71	106
72	107
73	109
74	110
75	111
76	113
77	114
78	117

n	a(n)
1	2
2	3
3	5
4	6
5	7
6	10
7	11
8	13
9	14
10	15
11	17
12	18
13	19
14	21
15	22
16	23
17	26
18	27
19	29
20	30
21	31
22	33
23	34
24	35
25	37
26	38
27	39
28	41
29	42
30	43
31	45
32	46
33	47
34	50
35	51
36	53
37	54
38	57
39	58
40	59
41	61
42	62
43	63
44	66
45	67
46	69
47	70
48	71
49	73
50	74
51	75
52	77
53	78
54	79
55	82
56	83
57	85
58	86
59	87
60	89
61	90
62	91
63	93
64	94
65	97
66	98
67	99
68	101
69	102
70	103
71	106
72	107
73	109
74	110
75	111
76	113
77	114
78	117