A298639 - cp's OEIS frontend

A298639 Numbers k such that the digital sum of k and the digital root of k have the same parity.

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	11
13	12
14	13
15	14
16	15
17	16
18	17
19	18
20	20
21	21
22	22
23	23
24	24
25	25
26	26
27	27
28	30
29	31
30	32
31	33
32	34
33	35
34	36
35	40
36	41
37	42
38	43
39	44
40	45
41	50
42	51
43	52
44	53
45	54
46	60
47	61
48	62
49	63
50	70
51	71
52	72
53	80
54	81
55	90
56	100
57	101
58	102
59	103
60	104
61	105
62	106
63	107
64	108
65	110
66	111
67	112
68	113
69	114

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27, 30, 31, 32, 33, 34, 35, 36, 40, 41, 42, 43, 44, 45, 50, 51, 52, 53, 54, 60, 61, 62, 63, 70, 71, 72, 80, 81, 90, 100, 101, 102, 103, 104, 105, 106, 107, 108, 110, 111, 112, 113, 114]

cp's OEIS Frontend

A298639 Numbers k such that the digital sum of k and the digital root of k have the same parity.

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	11
13	12
14	13
15	14
16	15
17	16
18	17
19	18
20	20
21	21
22	22
23	23
24	24
25	25
26	26
27	27
28	30
29	31
30	32
31	33
32	34
33	35
34	36
35	40
36	41
37	42
38	43
39	44
40	45
41	50
42	51
43	52
44	53
45	54
46	60
47	61
48	62
49	63
50	70
51	71
52	72
53	80
54	81
55	90
56	100
57	101
58	102
59	103
60	104
61	105
62	106
63	107
64	108
65	110
66	111
67	112
68	113
69	114

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	11
13	12
14	13
15	14
16	15
17	16
18	17
19	18
20	20
21	21
22	22
23	23
24	24
25	25
26	26
27	27
28	30
29	31
30	32
31	33
32	34
33	35
34	36
35	40
36	41
37	42
38	43
39	44
40	45
41	50
42	51
43	52
44	53
45	54
46	60
47	61
48	62
49	63
50	70
51	71
52	72
53	80
54	81
55	90
56	100
57	101
58	102
59	103
60	104
61	105
62	106
63	107
64	108
65	110
66	111
67	112
68	113
69	114

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	11
13	12
14	13
15	14
16	15
17	16
18	17
19	18
20	20
21	21
22	22
23	23
24	24
25	25
26	26
27	27
28	30
29	31
30	32
31	33
32	34
33	35
34	36
35	40
36	41
37	42
38	43
39	44
40	45
41	50
42	51
43	52
44	53
45	54
46	60
47	61
48	62
49	63
50	70
51	71
52	72
53	80
54	81
55	90
56	100
57	101
58	102
59	103
60	104
61	105
62	106
63	107
64	108
65	110
66	111
67	112
68	113
69	114