A070304 - cp's OEIS frontend

A070304 a(n) = number of times n^2*k^2/(n^2+k^2) is an integer as k ranges over 0, 1, 2, ...

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

[1, 2, 1, 2, 2, 2, 1, 2, 1, 6, 1, 2, 1, 2, 3, 2, 2, 2, 1, 7, 1, 2, 1, 2, 2, 4, 1, 2, 1, 8, 1, 2, 1, 3, 2, 2, 2, 2, 2, 7, 1, 2, 1, 2, 3, 2, 1, 2, 1, 7, 2, 4, 1, 2, 2, 2, 1, 4, 1, 9, 1, 2, 1, 2, 5, 2, 1, 4, 1, 7, 1, 2, 1, 3, 3, 2, 1, 5, 1, 7, 1, 3, 1, 2, 4, 2, 1, 2, 1, 8, 1, 2, 1, 2, 2, 2, 1, 2, 1, 8, 2, 4, 1, 4, 3]

cp's OEIS Frontend

A070304 a(n) = number of times n^2*k^2/(n^2+k^2) is an integer as k ranges over 0, 1, 2, ...

Table of values

List of values

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

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

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