A124896 - cp's OEIS frontend

A124896 Number of squarefree numbers of the form n^2 + k^2, 1<=k<=n.

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

[1, 1, 2, 1, 4, 2, 5, 4, 6, 4, 9, 3, 11, 6, 7, 7, 14, 5, 16, 8, 11, 8, 19, 7, 20, 11, 16, 12, 24, 8, 26, 15, 18, 15, 23, 11, 33, 16, 21, 15, 34, 10, 38, 19, 23, 20, 41, 15, 38, 19, 29, 22, 46, 15, 38, 22, 33, 26, 53, 15, 52, 26, 32, 30, 48, 18, 59, 30, 40, 22, 62, 21, 64, 32, 39, 34]

cp's OEIS Frontend

A124896 Number of squarefree numbers of the form n^2 + k^2, 1<=k<=n.

Table of values

List of values

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

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

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