A180430 - cp's OEIS frontend

A180430 Triangle T(n,k) defined by the recurrence in the formula.

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

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

cp's OEIS Frontend

A180430 Triangle T(n,k) defined by the recurrence in the formula.

Table of values

List of values

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

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

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