A362961 - cp's OEIS frontend

A362961 a(n) = Sum_{b=0..floor(sqrt(n)), n-b^2 is square} b.

n	a(n)
1	1
2	1
3	0
4	2
5	3
6	0
7	0
8	2
9	3
10	4
11	0
12	0
13	5
14	0
15	0
16	4
17	5
18	3
19	0
20	6
21	0
22	0
23	0
24	0
25	12
26	6
27	0
28	0
29	7
30	0
31	0
32	4
33	0
34	8
35	0
36	6
37	7
38	0
39	0
40	8
41	9
42	0
43	0
44	0
45	9
46	0
47	0
48	0
49	7
50	13
51	0
52	10
53	9
54	0
55	0
56	0
57	0
58	10
59	0
60	0
61	11
62	0
63	0
64	8
65	20
66	0
67	0
68	10
69	0
70	0
71	0
72	6
73	11
74	12
75	0
76	0
77	0
78	0
79	0
80	12
81	9
82	10
83	0

[1, 1, 0, 2, 3, 0, 0, 2, 3, 4, 0, 0, 5, 0, 0, 4, 5, 3, 0, 6, 0, 0, 0, 0, 12, 6, 0, 0, 7, 0, 0, 4, 0, 8, 0, 6, 7, 0, 0, 8, 9, 0, 0, 0, 9, 0, 0, 0, 7, 13, 0, 10, 9, 0, 0, 0, 0, 10, 0, 0, 11, 0, 0, 8, 20, 0, 0, 10, 0, 0, 0, 6, 11, 12, 0, 0, 0, 0, 0, 12, 9, 10, 0]

cp's OEIS Frontend

A362961 a(n) = Sum_{b=0..floor(sqrt(n)), n-b^2 is square} b.

Table of values

List of values

n	a(n)
1	1
2	1
3	0
4	2
5	3
6	0
7	0
8	2
9	3
10	4
11	0
12	0
13	5
14	0
15	0
16	4
17	5
18	3
19	0
20	6
21	0
22	0
23	0
24	0
25	12
26	6
27	0
28	0
29	7
30	0
31	0
32	4
33	0
34	8
35	0
36	6
37	7
38	0
39	0
40	8
41	9
42	0
43	0
44	0
45	9
46	0
47	0
48	0
49	7
50	13
51	0
52	10
53	9
54	0
55	0
56	0
57	0
58	10
59	0
60	0
61	11
62	0
63	0
64	8
65	20
66	0
67	0
68	10
69	0
70	0
71	0
72	6
73	11
74	12
75	0
76	0
77	0
78	0
79	0
80	12
81	9
82	10
83	0

n	a(n)
1	1
2	1
3	0
4	2
5	3
6	0
7	0
8	2
9	3
10	4
11	0
12	0
13	5
14	0
15	0
16	4
17	5
18	3
19	0
20	6
21	0
22	0
23	0
24	0
25	12
26	6
27	0
28	0
29	7
30	0
31	0
32	4
33	0
34	8
35	0
36	6
37	7
38	0
39	0
40	8
41	9
42	0
43	0
44	0
45	9
46	0
47	0
48	0
49	7
50	13
51	0
52	10
53	9
54	0
55	0
56	0
57	0
58	10
59	0
60	0
61	11
62	0
63	0
64	8
65	20
66	0
67	0
68	10
69	0
70	0
71	0
72	6
73	11
74	12
75	0
76	0
77	0
78	0
79	0
80	12
81	9
82	10
83	0

n	a(n)
1	1
2	1
3	0
4	2
5	3
6	0
7	0
8	2
9	3
10	4
11	0
12	0
13	5
14	0
15	0
16	4
17	5
18	3
19	0
20	6
21	0
22	0
23	0
24	0
25	12
26	6
27	0
28	0
29	7
30	0
31	0
32	4
33	0
34	8
35	0
36	6
37	7
38	0
39	0
40	8
41	9
42	0
43	0
44	0
45	9
46	0
47	0
48	0
49	7
50	13
51	0
52	10
53	9
54	0
55	0
56	0
57	0
58	10
59	0
60	0
61	11
62	0
63	0
64	8
65	20
66	0
67	0
68	10
69	0
70	0
71	0
72	6
73	11
74	12
75	0
76	0
77	0
78	0
79	0
80	12
81	9
82	10
83	0