A115524 - cp's OEIS frontend

A115524 Number triangle (1,-x)+(x,x)/2+(x,-x)/2-(x^2,x^2) (expressed using the notation of stretched Riordan arrays).

n	a(n)
0	1
1	1
2	-1
3	-1
4	0
5	1
6	0
7	0
8	1
9	-1
10	0
11	-1
12	0
13	0
14	1
15	0
16	0
17	0
18	0
19	1
20	-1
21	0
22	0
23	-1
24	0
25	0
26	0
27	1
28	0
29	0
30	0
31	0
32	0
33	0
34	1
35	-1
36	0
37	0
38	0
39	-1
40	0
41	0
42	0
43	0
44	1
45	0
46	0
47	0
48	0
49	0
50	0
51	0
52	0
53	1
54	-1
55	0
56	0
57	0
58	0
59	-1
60	0
61	0
62	0
63	0
64	0
65	1
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	1
77	-1
78	0
79	0
80	0
81	0
82	0
83	-1
84	0
85	0
86	0
87	0
88	0
89	0
90	1
91	0
92	0
93	0
94	0
95	0
96	0
97	0
98	0
99	0
100	0
101	0
102	0
103	1
104	-1
105	0
106	0
107	0
108	0
109	0
110	0
111	-1
112	0
113	0
114	0
115	0
116	0
117	0
118	0
119	1
120	0

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

cp's OEIS Frontend

A115524 Number triangle (1,-x)+(x,x)/2+(x,-x)/2-(x^2,x^2) (expressed using the notation of stretched Riordan arrays).

Table of values

List of values

n	a(n)
0	1
1	1
2	-1
3	-1
4	0
5	1
6	0
7	0
8	1
9	-1
10	0
11	-1
12	0
13	0
14	1
15	0
16	0
17	0
18	0
19	1
20	-1
21	0
22	0
23	-1
24	0
25	0
26	0
27	1
28	0
29	0
30	0
31	0
32	0
33	0
34	1
35	-1
36	0
37	0
38	0
39	-1
40	0
41	0
42	0
43	0
44	1
45	0
46	0
47	0
48	0
49	0
50	0
51	0
52	0
53	1
54	-1
55	0
56	0
57	0
58	0
59	-1
60	0
61	0
62	0
63	0
64	0
65	1
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	1
77	-1
78	0
79	0
80	0
81	0
82	0
83	-1
84	0
85	0
86	0
87	0
88	0
89	0
90	1
91	0
92	0
93	0
94	0
95	0
96	0
97	0
98	0
99	0
100	0
101	0
102	0
103	1
104	-1
105	0
106	0
107	0
108	0
109	0
110	0
111	-1
112	0
113	0
114	0
115	0
116	0
117	0
118	0
119	1
120	0

n	a(n)
0	1
1	1
2	-1
3	-1
4	0
5	1
6	0
7	0
8	1
9	-1
10	0
11	-1
12	0
13	0
14	1
15	0
16	0
17	0
18	0
19	1
20	-1
21	0
22	0
23	-1
24	0
25	0
26	0
27	1
28	0
29	0
30	0
31	0
32	0
33	0
34	1
35	-1
36	0
37	0
38	0
39	-1
40	0
41	0
42	0
43	0
44	1
45	0
46	0
47	0
48	0
49	0
50	0
51	0
52	0
53	1
54	-1
55	0
56	0
57	0
58	0
59	-1
60	0
61	0
62	0
63	0
64	0
65	1
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	1
77	-1
78	0
79	0
80	0
81	0
82	0
83	-1
84	0
85	0
86	0
87	0
88	0
89	0
90	1
91	0
92	0
93	0
94	0
95	0
96	0
97	0
98	0
99	0
100	0
101	0
102	0
103	1
104	-1
105	0
106	0
107	0
108	0
109	0
110	0
111	-1
112	0
113	0
114	0
115	0
116	0
117	0
118	0
119	1
120	0

n	a(n)
0	1
1	1
2	-1
3	-1
4	0
5	1
6	0
7	0
8	1
9	-1
10	0
11	-1
12	0
13	0
14	1
15	0
16	0
17	0
18	0
19	1
20	-1
21	0
22	0
23	-1
24	0
25	0
26	0
27	1
28	0
29	0
30	0
31	0
32	0
33	0
34	1
35	-1
36	0
37	0
38	0
39	-1
40	0
41	0
42	0
43	0
44	1
45	0
46	0
47	0
48	0
49	0
50	0
51	0
52	0
53	1
54	-1
55	0
56	0
57	0
58	0
59	-1
60	0
61	0
62	0
63	0
64	0
65	1
66	0
67	0
68	0
69	0
70	0
71	0
72	0
73	0
74	0
75	0
76	1
77	-1
78	0
79	0
80	0
81	0
82	0
83	-1
84	0
85	0
86	0
87	0
88	0
89	0
90	1
91	0
92	0
93	0
94	0
95	0
96	0
97	0
98	0
99	0
100	0
101	0
102	0
103	1
104	-1
105	0
106	0
107	0
108	0
109	0
110	0
111	-1
112	0
113	0
114	0
115	0
116	0
117	0
118	0
119	1
120	0