A268237 - cp's OEIS frontend

A268237 From the Fouriest transform of n: write n in that base b >= 4 which maximizes the number of 4's; in case of a tie pick the smallest b; sequence gives the base b.

n	a(n)
0	4
1	4
2	4
3	4
4	5
5	4
6	4
7	4
8	4
9	5
10	6
11	7
12	8
13	9
14	5
15	11
16	6
17	13
18	7
19	5
20	5
21	5
22	5
23	5
24	5
25	6
26	6
27	6
28	6
29	5
30	7
31	7
32	7
33	7
34	5
35	8
36	8
37	8
38	8
39	5
40	9
41	9
42	9
43	9
44	10
45	5
46	5
47	5
48	11
49	5
50	11
51	11
52	12
53	7
54	5
55	12
56	13
57	12
58	6
59	5
60	14
61	6
62	6
63	6
64	6
65	6
66	14
67	7
68	16
69	5
70	5
71	5
72	17
73	5
74	5
75	16
76	18
77	7
78	7
79	5
80	19
81	7
82	6
83	7
84	20
85	9
86	18
87	18
88	21
89	5
90	19
91	19
92	22
93	19
94	5
95	5
96	23
97	5
98	5
99	5
100	6

[4, 4, 4, 4, 5, 4, 4, 4, 4, 5, 6, 7, 8, 9, 5, 11, 6, 13, 7, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 5, 7, 7, 7, 7, 5, 8, 8, 8, 8, 5, 9, 9, 9, 9, 10, 5, 5, 5, 11, 5, 11, 11, 12, 7, 5, 12, 13, 12, 6, 5, 14, 6, 6, 6, 6, 6, 14, 7, 16, 5, 5, 5, 17, 5, 5, 16, 18, 7, 7, 5, 19, 7, 6, 7, 20, 9, 18, 18, 21, 5, 19, 19, 22, 19, 5, 5, 23, 5, 5, 5, 6]

cp's OEIS Frontend

A268237 From the Fouriest transform of n: write n in that base b >= 4 which maximizes the number of 4's; in case of a tie pick the smallest b; sequence gives the base b.

Table of values

List of values

n	a(n)
0	4
1	4
2	4
3	4
4	5
5	4
6	4
7	4
8	4
9	5
10	6
11	7
12	8
13	9
14	5
15	11
16	6
17	13
18	7
19	5
20	5
21	5
22	5
23	5
24	5
25	6
26	6
27	6
28	6
29	5
30	7
31	7
32	7
33	7
34	5
35	8
36	8
37	8
38	8
39	5
40	9
41	9
42	9
43	9
44	10
45	5
46	5
47	5
48	11
49	5
50	11
51	11
52	12
53	7
54	5
55	12
56	13
57	12
58	6
59	5
60	14
61	6
62	6
63	6
64	6
65	6
66	14
67	7
68	16
69	5
70	5
71	5
72	17
73	5
74	5
75	16
76	18
77	7
78	7
79	5
80	19
81	7
82	6
83	7
84	20
85	9
86	18
87	18
88	21
89	5
90	19
91	19
92	22
93	19
94	5
95	5
96	23
97	5
98	5
99	5
100	6

n	a(n)
0	4
1	4
2	4
3	4
4	5
5	4
6	4
7	4
8	4
9	5
10	6
11	7
12	8
13	9
14	5
15	11
16	6
17	13
18	7
19	5
20	5
21	5
22	5
23	5
24	5
25	6
26	6
27	6
28	6
29	5
30	7
31	7
32	7
33	7
34	5
35	8
36	8
37	8
38	8
39	5
40	9
41	9
42	9
43	9
44	10
45	5
46	5
47	5
48	11
49	5
50	11
51	11
52	12
53	7
54	5
55	12
56	13
57	12
58	6
59	5
60	14
61	6
62	6
63	6
64	6
65	6
66	14
67	7
68	16
69	5
70	5
71	5
72	17
73	5
74	5
75	16
76	18
77	7
78	7
79	5
80	19
81	7
82	6
83	7
84	20
85	9
86	18
87	18
88	21
89	5
90	19
91	19
92	22
93	19
94	5
95	5
96	23
97	5
98	5
99	5
100	6

n	a(n)
0	4
1	4
2	4
3	4
4	5
5	4
6	4
7	4
8	4
9	5
10	6
11	7
12	8
13	9
14	5
15	11
16	6
17	13
18	7
19	5
20	5
21	5
22	5
23	5
24	5
25	6
26	6
27	6
28	6
29	5
30	7
31	7
32	7
33	7
34	5
35	8
36	8
37	8
38	8
39	5
40	9
41	9
42	9
43	9
44	10
45	5
46	5
47	5
48	11
49	5
50	11
51	11
52	12
53	7
54	5
55	12
56	13
57	12
58	6
59	5
60	14
61	6
62	6
63	6
64	6
65	6
66	14
67	7
68	16
69	5
70	5
71	5
72	17
73	5
74	5
75	16
76	18
77	7
78	7
79	5
80	19
81	7
82	6
83	7
84	20
85	9
86	18
87	18
88	21
89	5
90	19
91	19
92	22
93	19
94	5
95	5
96	23
97	5
98	5
99	5
100	6