A352671 - cp's OEIS frontend

A352671 a(n) is the number of nonnegative numbers k < n such that for any base b >= 2, the sum of digits of n and k in base b are different.

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

[1, 1, 2, 2, 2, 1, 3, 3, 3, 2, 5, 2, 2, 3, 4, 3, 4, 3, 4, 2, 2, 1, 7, 2, 2, 3, 6, 3, 5, 1, 4, 4, 3, 3, 7, 3, 3, 3, 7, 3, 4, 1, 4, 4, 2, 2, 8, 3, 4, 4, 3, 4, 6, 4, 7, 3, 2, 1, 9, 2, 2, 3, 7, 5, 8, 3, 4, 3, 5, 2, 7, 4, 4, 3, 5, 4, 4, 1, 8, 4, 4, 3, 7, 3, 2, 2, 6]

cp's OEIS Frontend

A352671 a(n) is the number of nonnegative numbers k < n such that for any base b >= 2, the sum of digits of n and k in base b are different.

Table of values

List of values

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

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

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