A259875 - cp's OEIS frontend

A259875 Irregular triangle read by rows: coefficients (highest degree first) of polynomials defined by p_0(x)=0, p_1(x)=p_2(x)=1, p_3(x)=x+1; p_n(x)=x*p_{n-2}(x)-p_{n-4}(x).

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

[0, 1, 1, 1, 1, 1, 0, 1, 1, -1, 1, 0, -1, 1, 1, -2, -1, 1, 0, -2, 0, 1, 1, -3, -2, 1, 1, 0, -3, 0, 1, 1, 1, -4, -3, 3, 1, 1, 0, -4, 0, 3, 0, 1, 1, -5, -4, 6, 3, -1, 1, 0, -5, 0, 6, 0, -1, 1, 1, -6, -5, 10, 6, -4, -1, 1, 0, -6, 0, 10, 0, -4, 0, 1, 1, -7, -6, 15, 10, -10, -4, 1]

cp's OEIS Frontend

A259875 Irregular triangle read by rows: coefficients (highest degree first) of polynomials defined by p_0(x)=0, p_1(x)=p_2(x)=1, p_3(x)=x+1; p_n(x)=x*p_{n-2}(x)-p_{n-4}(x).

Table of values

List of values

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

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

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