A055223 - cp's OEIS frontend

A055223 One-fourth the digital sum of base 5 representations of 2^n.

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

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

cp's OEIS Frontend

A055223 One-fourth the digital sum of base 5 representations of 2^n.

Table of values

List of values

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

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

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