A306690 - cp's OEIS frontend

A306690 Number of ways to write n as u^4 + (v(v+1)/2)^2 + (x(3x+1)/2)^2 + (y(5y+1)/2)^2 + (z(9z+1)/2)^2, where u and v are nonnegative integers and x,y,z are integers.

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

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

cp's OEIS Frontend

A306690 Number of ways to write n as u^4 + (v(v+1)/2)^2 + (x(3x+1)/2)^2 + (y(5y+1)/2)^2 + (z(9z+1)/2)^2, where u and v are nonnegative integers and x,y,z are integers.

Table of values

List of values

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

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

cp's OEIS Frontend

A306690 Number of ways to write n as u^4 + (v*(v+1)/2)^2 + (x*(3x+1)/2)^2 + (y*(5y+1)/2)^2 + (z*(9z+1)/2)^2, where u and v are nonnegative integers and x,y,z are integers.

Table of values

List of values

A306690 Number of ways to write n as u^4 + (v(v+1)/2)^2 + (x(3x+1)/2)^2 + (y(5y+1)/2)^2 + (z(9z+1)/2)^2, where u and v are nonnegative integers and x,y,z are integers.

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