A117904 - cp's OEIS frontend

A117904 Number triangle [k<=n]*0^abs(L(C(n,2)/3) - L(C(k,2)/3)) where L(j/p) is the Legendre symbol of j and p.

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

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

cp's OEIS Frontend

A117904 Number triangle [k<=n]*0^abs(L(C(n,2)/3) - L(C(k,2)/3)) where L(j/p) is the Legendre symbol of j and p.

Table of values

List of values

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

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

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