A307378 - cp's OEIS frontend

A307378 Irregular triangle T(n, k) read by rows: row n gives the periods of the cycles of binary quadratic forms of discriminant 4*D(n), with D(n) = A000037(n).

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

[2, 2, 2, 2, 2, 2, 4, 4, 2, 2, 2, 6, 2, 2, 2, 2, 10, 4, 4, 2, 2, 2, 2, 2, 2, 2, 6, 6, 2, 2, 6, 6, 6, 6, 4, 4, 2, 2, 4, 4, 2, 6, 2, 2, 4, 4, 10, 2, 2, 4, 4, 8, 8, 4, 4, 4, 4, 4, 4, 6, 6, 2, 2, 2, 2, 2, 6, 6, 2, 2, 2, 2, 6, 6, 2, 2, 4, 4, 6, 2, 2, 2, 2, 10, 10, 8, 8, 6, 6, 12, 12, 4, 4, 2, 2, 2, 2, 2, 6, 2, 2, 6, 6, 6, 6]

cp's OEIS Frontend

A307378 Irregular triangle T(n, k) read by rows: row n gives the periods of the cycles of binary quadratic forms of discriminant 4*D(n), with D(n) = A000037(n).

Table of values

List of values

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

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

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