A122921 - cp's OEIS frontend

A122921 Express n as the sum of four squares, x^2+y^2+z^2+w^2, x>=y>=z>=w>=0, minimizing the value of x. a(n) is that x.

n	a(n)
0	0
1	1
2	1
3	1
4	1
5	2
6	2
7	2
8	2
9	2
10	2
11	3
12	2
13	2
14	3
15	3
16	2
17	3
18	3
19	3
20	3
21	3
22	3
23	3
24	4
25	4
26	3
27	3
28	3
29	4
30	4
31	3
32	4
33	4
34	4
35	4
36	3
37	4
38	4
39	5
40	4
41	4
42	4
43	4
44	5
45	4
46	5
47	5
48	4
49	4
50	4
51	5
52	4
53	6
54	5
55	5
56	6
57	4
58	5
59	5
60	5
61	5
62	6
63	5
64	4
65	6
66	5
67	5
68	5
69	6
70	5
71	6
72	6
73	5
74	6
75	5
76	5
77	6
78	6
79	5
80	6
81	6
82	5
83	7
84	5
85	6
86	6
87	6
88	6
89	6
90	6
91	5
92	6
93	6
94	7
95	6
96	8
97	6
98	6
99	7
100	5
101	6
102	6
103	7
104	6

[0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 2, 2, 3, 3, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 3, 3, 3, 4, 4, 3, 4, 4, 4, 4, 3, 4, 4, 5, 4, 4, 4, 4, 5, 4, 5, 5, 4, 4, 4, 5, 4, 6, 5, 5, 6, 4, 5, 5, 5, 5, 6, 5, 4, 6, 5, 5, 5, 6, 5, 6, 6, 5, 6, 5, 5, 6, 6, 5, 6, 6, 5, 7, 5, 6, 6, 6, 6, 6, 6, 5, 6, 6, 7, 6, 8, 6, 6, 7, 5, 6, 6, 7, 6]

cp's OEIS Frontend

A122921 Express n as the sum of four squares, x^2+y^2+z^2+w^2, x>=y>=z>=w>=0, minimizing the value of x. a(n) is that x.

Table of values

List of values

n	a(n)
0	0
1	1
2	1
3	1
4	1
5	2
6	2
7	2
8	2
9	2
10	2
11	3
12	2
13	2
14	3
15	3
16	2
17	3
18	3
19	3
20	3
21	3
22	3
23	3
24	4
25	4
26	3
27	3
28	3
29	4
30	4
31	3
32	4
33	4
34	4
35	4
36	3
37	4
38	4
39	5
40	4
41	4
42	4
43	4
44	5
45	4
46	5
47	5
48	4
49	4
50	4
51	5
52	4
53	6
54	5
55	5
56	6
57	4
58	5
59	5
60	5
61	5
62	6
63	5
64	4
65	6
66	5
67	5
68	5
69	6
70	5
71	6
72	6
73	5
74	6
75	5
76	5
77	6
78	6
79	5
80	6
81	6
82	5
83	7
84	5
85	6
86	6
87	6
88	6
89	6
90	6
91	5
92	6
93	6
94	7
95	6
96	8
97	6
98	6
99	7
100	5
101	6
102	6
103	7
104	6

n	a(n)
0	0
1	1
2	1
3	1
4	1
5	2
6	2
7	2
8	2
9	2
10	2
11	3
12	2
13	2
14	3
15	3
16	2
17	3
18	3
19	3
20	3
21	3
22	3
23	3
24	4
25	4
26	3
27	3
28	3
29	4
30	4
31	3
32	4
33	4
34	4
35	4
36	3
37	4
38	4
39	5
40	4
41	4
42	4
43	4
44	5
45	4
46	5
47	5
48	4
49	4
50	4
51	5
52	4
53	6
54	5
55	5
56	6
57	4
58	5
59	5
60	5
61	5
62	6
63	5
64	4
65	6
66	5
67	5
68	5
69	6
70	5
71	6
72	6
73	5
74	6
75	5
76	5
77	6
78	6
79	5
80	6
81	6
82	5
83	7
84	5
85	6
86	6
87	6
88	6
89	6
90	6
91	5
92	6
93	6
94	7
95	6
96	8
97	6
98	6
99	7
100	5
101	6
102	6
103	7
104	6

n	a(n)
0	0
1	1
2	1
3	1
4	1
5	2
6	2
7	2
8	2
9	2
10	2
11	3
12	2
13	2
14	3
15	3
16	2
17	3
18	3
19	3
20	3
21	3
22	3
23	3
24	4
25	4
26	3
27	3
28	3
29	4
30	4
31	3
32	4
33	4
34	4
35	4
36	3
37	4
38	4
39	5
40	4
41	4
42	4
43	4
44	5
45	4
46	5
47	5
48	4
49	4
50	4
51	5
52	4
53	6
54	5
55	5
56	6
57	4
58	5
59	5
60	5
61	5
62	6
63	5
64	4
65	6
66	5
67	5
68	5
69	6
70	5
71	6
72	6
73	5
74	6
75	5
76	5
77	6
78	6
79	5
80	6
81	6
82	5
83	7
84	5
85	6
86	6
87	6
88	6
89	6
90	6
91	5
92	6
93	6
94	7
95	6
96	8
97	6
98	6
99	7
100	5
101	6
102	6
103	7
104	6