A374056 - cp's OEIS frontend

A374056 a(n) = max_{i=0..n} S_4(i) + S_4(n-i) where S_4(x) = A053737(x) is the base-4 digit sum of x.

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

[0, 1, 2, 3, 4, 5, 6, 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10, 8, 9, 10, 11, 9, 10, 11, 12, 7, 8, 9, 10, 8, 9, 10, 11, 9, 10, 11, 12, 10, 11, 12, 13, 8, 9, 10, 11, 9, 10, 11, 12, 10, 11, 12, 13, 11, 12, 13, 14, 9, 10, 11, 12, 10, 11, 12, 13, 11, 12, 13, 14]

cp's OEIS Frontend

A374056 a(n) = max_{i=0..n} S_4(i) + S_4(n-i) where S_4(x) = A053737(x) is the base-4 digit sum of x.

Table of values

List of values

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

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

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