A037848 - cp's OEIS frontend

A037848 a(n)=Sum{d(i-1)-d(i): d(i) where Sum{d(i)*7^i: i=0,1,...,m} is the base 7 representation of n.

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

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

cp's OEIS Frontend

A037848 a(n)=Sum{d(i-1)-d(i): d(i) where Sum{d(i)*7^i: i=0,1,...,m} is the base 7 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	1
10	2
11	3
12	4
13	5
14	0
15	0
16	0
17	1
18	2
19	3
20	4
21	0
22	0
23	0
24	0
25	1
26	2
27	3
28	0
29	0
30	0
31	0
32	0
33	1
34	2
35	0
36	0
37	0
38	0
39	0
40	0
41	1
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	0
50	1
51	2
52	3
53	4
54	5
55	6
56	0
57	0
58	1
59	2
60	3
61	4
62	5
63	1
64	1
65	1
66	2
67	3
68	4
69	5
70	2
71	2
72	2
73	2
74	3
75	4
76	5
77	3
78	3
79	3
80	3
81	3
82	4
83	5
84	4
85	4
86	4
87	4
88	4
89	4
90	5

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

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