A330315 - cp's OEIS frontend

A330315 a(n) = r(n)*r(n+1), where r(n) = A004018(n) is the number of ways of writing n as a sum of two squares.

n	a(n)
0	4
1	16
2	0
3	0
4	32
5	0
6	0
7	0
8	16
9	32
10	0
11	0
12	0
13	0
14	0
15	0
16	32
17	32
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	96
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	32
37	0
38	0
39	0
40	64
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	48
50	0
51	0
52	64
53	0
54	0
55	0
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	64
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	32
73	64
74	0
75	0
76	0
77	0
78	0
79	0
80	32
81	32
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	64
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	32
98	0
99	0
100	96

[4, 16, 0, 0, 32, 0, 0, 0, 16, 32, 0, 0, 0, 0, 0, 0, 32, 32, 0, 0, 0, 0, 0, 0, 0, 96, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 32, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 0, 0, 48, 0, 0, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 0, 32, 64, 0, 0, 0, 0, 0, 0, 32, 32, 0, 0, 0, 0, 0, 0, 0, 64, 0, 0, 0, 0, 0, 0, 0, 32, 0, 0, 96]

cp's OEIS Frontend

A330315 a(n) = r(n)*r(n+1), where r(n) = A004018(n) is the number of ways of writing n as a sum of two squares.

Table of values

List of values

n	a(n)
0	4
1	16
2	0
3	0
4	32
5	0
6	0
7	0
8	16
9	32
10	0
11	0
12	0
13	0
14	0
15	0
16	32
17	32
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	96
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	32
37	0
38	0
39	0
40	64
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	48
50	0
51	0
52	64
53	0
54	0
55	0
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	64
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	32
73	64
74	0
75	0
76	0
77	0
78	0
79	0
80	32
81	32
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	64
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	32
98	0
99	0
100	96

n	a(n)
0	4
1	16
2	0
3	0
4	32
5	0
6	0
7	0
8	16
9	32
10	0
11	0
12	0
13	0
14	0
15	0
16	32
17	32
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	96
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	32
37	0
38	0
39	0
40	64
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	48
50	0
51	0
52	64
53	0
54	0
55	0
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	64
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	32
73	64
74	0
75	0
76	0
77	0
78	0
79	0
80	32
81	32
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	64
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	32
98	0
99	0
100	96

n	a(n)
0	4
1	16
2	0
3	0
4	32
5	0
6	0
7	0
8	16
9	32
10	0
11	0
12	0
13	0
14	0
15	0
16	32
17	32
18	0
19	0
20	0
21	0
22	0
23	0
24	0
25	96
26	0
27	0
28	0
29	0
30	0
31	0
32	0
33	0
34	0
35	0
36	32
37	0
38	0
39	0
40	64
41	0
42	0
43	0
44	0
45	0
46	0
47	0
48	0
49	48
50	0
51	0
52	64
53	0
54	0
55	0
56	0
57	0
58	0
59	0
60	0
61	0
62	0
63	0
64	64
65	0
66	0
67	0
68	0
69	0
70	0
71	0
72	32
73	64
74	0
75	0
76	0
77	0
78	0
79	0
80	32
81	32
82	0
83	0
84	0
85	0
86	0
87	0
88	0
89	64
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	32
98	0
99	0
100	96