A308686 - cp's OEIS frontend

A308686 Irregular triangle with the nonnegative proper fundamental solutions of the binary quadratic form x^2 + x*y - y^2 representing N = N(n) = A089270(n), for n >= 1.

n	a(n)
1	1
2	0
3	2
4	1
5	3
6	1
7	3
8	2
9	4
10	1
11	4
12	3
13	5
14	1
15	5
16	4
17	5
18	2
19	5
20	3
21	6
22	1
23	6
24	5
25	7
26	1
27	7
28	6
29	7
30	2
31	7
32	5
33	7
34	3
35	7
36	4
37	8
38	1
39	8
40	7
41	8
42	3
43	8
44	5
45	9
46	1
47	9
48	8
49	9
50	2
51	9
52	7
53	9
54	4
55	9
56	5
57	10
58	1
59	10
60	9
61	10
62	3
63	10
64	7
65	11
66	1
67	11
68	10
69	11
70	2
71	11
72	9
73	11
74	3
75	11
76	8
77	11
78	4
79	11
80	7
81	11
82	5
83	11
84	6
85	12
86	1
87	12
88	11
89	12
90	5
91	12
92	7
93	13
94	1
95	13
96	12
97	13
98	2
99	13
100	11
101	13
102	3
103	13
104	10
105	13
106	4
107	13
108	9
109	13
110	5
111	13
112	8
113	14
114	1
115	14
116	13
117	13
118	6
119	13
120	7

[1, 0, 2, 1, 3, 1, 3, 2, 4, 1, 4, 3, 5, 1, 5, 4, 5, 2, 5, 3, 6, 1, 6, 5, 7, 1, 7, 6, 7, 2, 7, 5, 7, 3, 7, 4, 8, 1, 8, 7, 8, 3, 8, 5, 9, 1, 9, 8, 9, 2, 9, 7, 9, 4, 9, 5, 10, 1, 10, 9, 10, 3, 10, 7, 11, 1, 11, 10, 11, 2, 11, 9, 11, 3, 11, 8, 11, 4, 11, 7, 11, 5, 11, 6, 12, 1, 12, 11, 12, 5, 12, 7, 13, 1, 13, 12, 13, 2, 13, 11, 13, 3, 13, 10, 13, 4, 13, 9, 13, 5, 13, 8, 14, 1, 14, 13, 13, 6, 13, 7]

cp's OEIS Frontend

A308686 Irregular triangle with the nonnegative proper fundamental solutions of the binary quadratic form x^2 + x*y - y^2 representing N = N(n) = A089270(n), for n >= 1.

Table of values

List of values

n	a(n)
1	1
2	0
3	2
4	1
5	3
6	1
7	3
8	2
9	4
10	1
11	4
12	3
13	5
14	1
15	5
16	4
17	5
18	2
19	5
20	3
21	6
22	1
23	6
24	5
25	7
26	1
27	7
28	6
29	7
30	2
31	7
32	5
33	7
34	3
35	7
36	4
37	8
38	1
39	8
40	7
41	8
42	3
43	8
44	5
45	9
46	1
47	9
48	8
49	9
50	2
51	9
52	7
53	9
54	4
55	9
56	5
57	10
58	1
59	10
60	9
61	10
62	3
63	10
64	7
65	11
66	1
67	11
68	10
69	11
70	2
71	11
72	9
73	11
74	3
75	11
76	8
77	11
78	4
79	11
80	7
81	11
82	5
83	11
84	6
85	12
86	1
87	12
88	11
89	12
90	5
91	12
92	7
93	13
94	1
95	13
96	12
97	13
98	2
99	13
100	11
101	13
102	3
103	13
104	10
105	13
106	4
107	13
108	9
109	13
110	5
111	13
112	8
113	14
114	1
115	14
116	13
117	13
118	6
119	13
120	7

n	a(n)
1	1
2	0
3	2
4	1
5	3
6	1
7	3
8	2
9	4
10	1
11	4
12	3
13	5
14	1
15	5
16	4
17	5
18	2
19	5
20	3
21	6
22	1
23	6
24	5
25	7
26	1
27	7
28	6
29	7
30	2
31	7
32	5
33	7
34	3
35	7
36	4
37	8
38	1
39	8
40	7
41	8
42	3
43	8
44	5
45	9
46	1
47	9
48	8
49	9
50	2
51	9
52	7
53	9
54	4
55	9
56	5
57	10
58	1
59	10
60	9
61	10
62	3
63	10
64	7
65	11
66	1
67	11
68	10
69	11
70	2
71	11
72	9
73	11
74	3
75	11
76	8
77	11
78	4
79	11
80	7
81	11
82	5
83	11
84	6
85	12
86	1
87	12
88	11
89	12
90	5
91	12
92	7
93	13
94	1
95	13
96	12
97	13
98	2
99	13
100	11
101	13
102	3
103	13
104	10
105	13
106	4
107	13
108	9
109	13
110	5
111	13
112	8
113	14
114	1
115	14
116	13
117	13
118	6
119	13
120	7

n	a(n)
1	1
2	0
3	2
4	1
5	3
6	1
7	3
8	2
9	4
10	1
11	4
12	3
13	5
14	1
15	5
16	4
17	5
18	2
19	5
20	3
21	6
22	1
23	6
24	5
25	7
26	1
27	7
28	6
29	7
30	2
31	7
32	5
33	7
34	3
35	7
36	4
37	8
38	1
39	8
40	7
41	8
42	3
43	8
44	5
45	9
46	1
47	9
48	8
49	9
50	2
51	9
52	7
53	9
54	4
55	9
56	5
57	10
58	1
59	10
60	9
61	10
62	3
63	10
64	7
65	11
66	1
67	11
68	10
69	11
70	2
71	11
72	9
73	11
74	3
75	11
76	8
77	11
78	4
79	11
80	7
81	11
82	5
83	11
84	6
85	12
86	1
87	12
88	11
89	12
90	5
91	12
92	7
93	13
94	1
95	13
96	12
97	13
98	2
99	13
100	11
101	13
102	3
103	13
104	10
105	13
106	4
107	13
108	9
109	13
110	5
111	13
112	8
113	14
114	1
115	14
116	13
117	13
118	6
119	13
120	7