A165913 - cp's OEIS frontend

A165913 Irregular triangle read by rows: Squarefree nonzero quadratic residues.

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

[1, 1, 1, 1, 1, 3, 1, 2, 1, 1, 7, 1, 5, 6, 1, 3, 5, 1, 1, 3, 10, 1, 2, 7, 11, 1, 6, 10, 1, 1, 2, 13, 15, 1, 7, 10, 13, 1, 5, 6, 7, 11, 17, 1, 5, 1, 7, 15, 1, 3, 5, 11, 14, 15, 1, 2, 3, 6, 13, 1, 1, 6, 11, 14, 19, 21, 1, 3, 10, 13, 14, 17, 22, 23, 1, 7, 10, 13, 19, 22, 1, 21, 1, 5, 6, 7, 13, 22, 23]

cp's OEIS Frontend

A165913 Irregular triangle read by rows: Squarefree nonzero quadratic residues.

Table of values

List of values

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

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

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