A037850 - cp's OEIS frontend

A037850 a(n)=Sum{d(i-1)-d(i): d(i) where Sum{d(i)*9^i: i=0,1,...,m} is the base 9 representation of n.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	1
12	2
13	3
14	4
15	5
16	6
17	7
18	0
19	0
20	0
21	1
22	2
23	3
24	4
25	5
26	6
27	0
28	0
29	0
30	0
31	1
32	2
33	3
34	4
35	5
36	0
37	0
38	0
39	0
40	0
41	1
42	2
43	3
44	4
45	0
46	0
47	0
48	0
49	0
50	0
51	1
52	2
53	3
54	0
55	0
56	0
57	0
58	0
59	0
60	0
61	1
62	2
63	0
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	1
72	0
73	0
74	0
75	0
76	0
77	0
78	0
79	0
80	0
81	0
82	1
83	2
84	3
85	4
86	5
87	6
88	7
89	8
90	0

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 0, 0, 0, 1, 2, 3, 4, 5, 6, 0, 0, 0, 0, 1, 2, 3, 4, 5, 0, 0, 0, 0, 0, 1, 2, 3, 4, 0, 0, 0, 0, 0, 0, 1, 2, 3, 0, 0, 0, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 0]

cp's OEIS Frontend

A037850 a(n)=Sum{d(i-1)-d(i): d(i) where Sum{d(i)*9^i: i=0,1,...,m} is the base 9 representation of n.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	1
12	2
13	3
14	4
15	5
16	6
17	7
18	0
19	0
20	0
21	1
22	2
23	3
24	4
25	5
26	6
27	0
28	0
29	0
30	0
31	1
32	2
33	3
34	4
35	5
36	0
37	0
38	0
39	0
40	0
41	1
42	2
43	3
44	4
45	0
46	0
47	0
48	0
49	0
50	0
51	1
52	2
53	3
54	0
55	0
56	0
57	0
58	0
59	0
60	0
61	1
62	2
63	0
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	1
72	0
73	0
74	0
75	0
76	0
77	0
78	0
79	0
80	0
81	0
82	1
83	2
84	3
85	4
86	5
87	6
88	7
89	8
90	0

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	1
12	2
13	3
14	4
15	5
16	6
17	7
18	0
19	0
20	0
21	1
22	2
23	3
24	4
25	5
26	6
27	0
28	0
29	0
30	0
31	1
32	2
33	3
34	4
35	5
36	0
37	0
38	0
39	0
40	0
41	1
42	2
43	3
44	4
45	0
46	0
47	0
48	0
49	0
50	0
51	1
52	2
53	3
54	0
55	0
56	0
57	0
58	0
59	0
60	0
61	1
62	2
63	0
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	1
72	0
73	0
74	0
75	0
76	0
77	0
78	0
79	0
80	0
81	0
82	1
83	2
84	3
85	4
86	5
87	6
88	7
89	8
90	0

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	0
7	0
8	0
9	0
10	0
11	1
12	2
13	3
14	4
15	5
16	6
17	7
18	0
19	0
20	0
21	1
22	2
23	3
24	4
25	5
26	6
27	0
28	0
29	0
30	0
31	1
32	2
33	3
34	4
35	5
36	0
37	0
38	0
39	0
40	0
41	1
42	2
43	3
44	4
45	0
46	0
47	0
48	0
49	0
50	0
51	1
52	2
53	3
54	0
55	0
56	0
57	0
58	0
59	0
60	0
61	1
62	2
63	0
64	0
65	0
66	0
67	0
68	0
69	0
70	0
71	1
72	0
73	0
74	0
75	0
76	0
77	0
78	0
79	0
80	0
81	0
82	1
83	2
84	3
85	4
86	5
87	6
88	7
89	8
90	0