A271381 - cp's OEIS frontend

A271381 Number of ordered ways to write n as u^2 + v^2 + x^3 + y^3, where u, v, x, y are nonnegative integers with 2 | u*v, u <= v and x <= y.

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

[1, 2, 2, 1, 1, 2, 2, 1, 2, 4, 3, 1, 1, 3, 2, 1, 3, 5, 3, 1, 2, 3, 2, 0, 2, 5, 3, 3, 3, 4, 1, 2, 4, 5, 3, 2, 5, 4, 3, 2, 4, 6, 2, 3, 4, 5, 2, 2, 4, 3, 2, 2, 5, 6, 4, 3, 2, 3, 2, 2, 4, 4, 3, 3, 5, 7, 4, 5, 5, 6, 4, 2, 6, 9, 6, 2, 4, 5, 1, 3, 8]

cp's OEIS Frontend

A271381 Number of ordered ways to write n as u^2 + v^2 + x^3 + y^3, where u, v, x, y are nonnegative integers with 2 | u*v, u <= v and x <= y.

Table of values

List of values

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

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

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