A091397 - cp's OEIS frontend

A091397 a(n) = Product_{ p | n } (1 + Legendre(3,p) ).

n	a(n)
1	1
2	0
3	1
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	2
12	0
13	2
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	2
24	0
25	0
26	0
27	1
28	0
29	0
30	0
31	0
32	0
33	2
34	0
35	0
36	0
37	2
38	0
39	2
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	2
48	0
49	0
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	0
58	0
59	2
60	0
61	2
62	0
63	0
64	0
65	0
66	0
67	0
68	0
69	2
70	0
71	2
72	0
73	2
74	0
75	0
76	0
77	0
78	0
79	0
80	0
81	1
82	0
83	2
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	2
98	0
99	2
100	0
101	0
102	0
103	0
104	0
105	0

[1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 1, 0, 0, 0, 0, 0, 2, 0, 0, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0, 0, 1, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 2, 0, 0, 0, 0, 0, 0]

cp's OEIS Frontend

A091397 a(n) = Product_{ p | n } (1 + Legendre(3,p) ).

Table of values

List of values

n	a(n)
1	1
2	0
3	1
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	2
12	0
13	2
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	2
24	0
25	0
26	0
27	1
28	0
29	0
30	0
31	0
32	0
33	2
34	0
35	0
36	0
37	2
38	0
39	2
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	2
48	0
49	0
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	0
58	0
59	2
60	0
61	2
62	0
63	0
64	0
65	0
66	0
67	0
68	0
69	2
70	0
71	2
72	0
73	2
74	0
75	0
76	0
77	0
78	0
79	0
80	0
81	1
82	0
83	2
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	2
98	0
99	2
100	0
101	0
102	0
103	0
104	0
105	0

n	a(n)
1	1
2	0
3	1
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	2
12	0
13	2
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	2
24	0
25	0
26	0
27	1
28	0
29	0
30	0
31	0
32	0
33	2
34	0
35	0
36	0
37	2
38	0
39	2
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	2
48	0
49	0
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	0
58	0
59	2
60	0
61	2
62	0
63	0
64	0
65	0
66	0
67	0
68	0
69	2
70	0
71	2
72	0
73	2
74	0
75	0
76	0
77	0
78	0
79	0
80	0
81	1
82	0
83	2
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	2
98	0
99	2
100	0
101	0
102	0
103	0
104	0
105	0

n	a(n)
1	1
2	0
3	1
4	0
5	0
6	0
7	0
8	0
9	1
10	0
11	2
12	0
13	2
14	0
15	0
16	0
17	0
18	0
19	0
20	0
21	0
22	0
23	2
24	0
25	0
26	0
27	1
28	0
29	0
30	0
31	0
32	0
33	2
34	0
35	0
36	0
37	2
38	0
39	2
40	0
41	0
42	0
43	0
44	0
45	0
46	0
47	2
48	0
49	0
50	0
51	0
52	0
53	0
54	0
55	0
56	0
57	0
58	0
59	2
60	0
61	2
62	0
63	0
64	0
65	0
66	0
67	0
68	0
69	2
70	0
71	2
72	0
73	2
74	0
75	0
76	0
77	0
78	0
79	0
80	0
81	1
82	0
83	2
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	0
94	0
95	0
96	0
97	2
98	0
99	2
100	0
101	0
102	0
103	0
104	0
105	0