A270921 - cp's OEIS frontend

A270921 Number of ordered ways to write n as x(3x+2) + y(5y+1)/2 - z^4, where x and y are integers, and z is a nonnegative integer with z^4 <= n.

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

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

cp's OEIS Frontend

A270921 Number of ordered ways to write n as x(3x+2) + y(5y+1)/2 - z^4, where x and y are integers, and z is a nonnegative integer with z^4 <= n.

Table of values

List of values

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

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

cp's OEIS Frontend

A270921 Number of ordered ways to write n as x*(3x+2) + y*(5y+1)/2 - z^4, where x and y are integers, and z is a nonnegative integer with z^4 <= n.

Table of values

List of values

A270921 Number of ordered ways to write n as x(3x+2) + y(5y+1)/2 - z^4, where x and y are integers, and z is a nonnegative integer with z^4 <= n.

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