A223708 - cp's OEIS frontend

A223708 Nonzero terms in A107628; related to quadratic forms ax^2 + bxy + cy^2.

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

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

cp's OEIS Frontend

A223708 Nonzero terms in A107628; related to quadratic forms ax^2 + bxy + cy^2.

Table of values

List of values

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

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

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