A043268 - cp's OEIS frontend

A043268 Sum of digits of n-th base 9 palindrome.

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

[0, 1, 2, 3, 4, 5, 6, 7, 8, 2, 4, 6, 8, 10, 12, 14, 16, 2, 3, 4, 5, 6, 7, 8, 9, 10, 4, 5, 6, 7, 8, 9, 10, 11, 12, 6, 7, 8, 9, 10, 11, 12, 13, 14, 8, 9, 10, 11, 12, 13, 14, 15, 16, 10, 11, 12, 13, 14, 15, 16, 17, 18, 12, 13, 14, 15, 16, 17, 18, 19, 20, 14]

cp's OEIS Frontend

A043268 Sum of digits of n-th base 9 palindrome.

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	2
11	4
12	6
13	8
14	10
15	12
16	14
17	16
18	2
19	3
20	4
21	5
22	6
23	7
24	8
25	9
26	10
27	4
28	5
29	6
30	7
31	8
32	9
33	10
34	11
35	12
36	6
37	7
38	8
39	9
40	10
41	11
42	12
43	13
44	14
45	8
46	9
47	10
48	11
49	12
50	13
51	14
52	15
53	16
54	10
55	11
56	12
57	13
58	14
59	15
60	16
61	17
62	18
63	12
64	13
65	14
66	15
67	16
68	17
69	18
70	19
71	20
72	14

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

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