A212662 - cp's OEIS frontend

A212662 Numbers k for which k' = x' + y', where x > 0, k = x + y, and k', x', y' are the arithmetic derivatives of k, x, y.

n	a(n)
1	3
2	6
3	9
4	12
5	15
6	18
7	21
8	24
9	25
10	27
11	30
12	33
13	36
14	39
15	42
16	45
17	48
18	50
19	51
20	54
21	55
22	57
23	60
24	63
25	66
26	69
27	72
28	75
29	78
30	81
31	82
32	84
33	85
34	87
35	90
36	93
37	95
38	96
39	99
40	100
41	102
42	105
43	108
44	110
45	111
46	114
47	116
48	117
49	120
50	121
51	123
52	125
53	126
54	129
55	132
56	135
57	138
58	141
59	144
60	145

[3, 6, 9, 12, 15, 18, 21, 24, 25, 27, 30, 33, 36, 39, 42, 45, 48, 50, 51, 54, 55, 57, 60, 63, 66, 69, 72, 75, 78, 81, 82, 84, 85, 87, 90, 93, 95, 96, 99, 100, 102, 105, 108, 110, 111, 114, 116, 117, 120, 121, 123, 125, 126, 129, 132, 135, 138, 141, 144, 145]

cp's OEIS Frontend

A212662 Numbers k for which k' = x' + y', where x > 0, k = x + y, and k', x', y' are the arithmetic derivatives of k, x, y.

Table of values

List of values

n	a(n)
1	3
2	6
3	9
4	12
5	15
6	18
7	21
8	24
9	25
10	27
11	30
12	33
13	36
14	39
15	42
16	45
17	48
18	50
19	51
20	54
21	55
22	57
23	60
24	63
25	66
26	69
27	72
28	75
29	78
30	81
31	82
32	84
33	85
34	87
35	90
36	93
37	95
38	96
39	99
40	100
41	102
42	105
43	108
44	110
45	111
46	114
47	116
48	117
49	120
50	121
51	123
52	125
53	126
54	129
55	132
56	135
57	138
58	141
59	144
60	145

n	a(n)
1	3
2	6
3	9
4	12
5	15
6	18
7	21
8	24
9	25
10	27
11	30
12	33
13	36
14	39
15	42
16	45
17	48
18	50
19	51
20	54
21	55
22	57
23	60
24	63
25	66
26	69
27	72
28	75
29	78
30	81
31	82
32	84
33	85
34	87
35	90
36	93
37	95
38	96
39	99
40	100
41	102
42	105
43	108
44	110
45	111
46	114
47	116
48	117
49	120
50	121
51	123
52	125
53	126
54	129
55	132
56	135
57	138
58	141
59	144
60	145

n	a(n)
1	3
2	6
3	9
4	12
5	15
6	18
7	21
8	24
9	25
10	27
11	30
12	33
13	36
14	39
15	42
16	45
17	48
18	50
19	51
20	54
21	55
22	57
23	60
24	63
25	66
26	69
27	72
28	75
29	78
30	81
31	82
32	84
33	85
34	87
35	90
36	93
37	95
38	96
39	99
40	100
41	102
42	105
43	108
44	110
45	111
46	114
47	116
48	117
49	120
50	121
51	123
52	125
53	126
54	129
55	132
56	135
57	138
58	141
59	144
60	145