A193002 - cp's OEIS frontend

A193002 Triangle T(n,k)=0 (k odd), T(0,0)=-3, T(n,0)=1 (n > 0) and T(n,k) = T(n-1,k) - T(n-2,k-2).

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

[-3, 1, 0, 1, 0, 3, 1, 0, 2, 0, 1, 0, 1, 0, -3, 1, 0, 0, 0, -5, 0, 1, 0, -1, 0, -6, 0, 3, 1, 0, -2, 0, -6, 0, 8, 0, 1, 0, -3, 0, -5, 0, 14, 0, -3, 1, 0, -4, 0, -3, 0, 20, 0, -11, 0, 1, 0, -5, 0, 0, 0, 25, 0, -25, 0, 3, 1, 0, -6]

cp's OEIS Frontend

A193002 Triangle T(n,k)=0 (k odd), T(0,0)=-3, T(n,0)=1 (n > 0) and T(n,k) = T(n-1,k) - T(n-2,k-2).

Table of values

List of values

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

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

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