A173120 - cp's OEIS frontend

A173120 Triangle T(n, k, q) = q[n=2] + Sum_{j=0..5} q^jbinomial(n-2j, k-j)[n>2*j] with T(n,0) = T(n,n) = 1 for q = -4, read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	-2
5	1
6	1
7	-1
8	-1
9	1
10	1
11	0
12	-2
13	0
14	1
15	1
16	1
17	14
18	14
19	1
20	1
21	1
22	2
23	15
24	28
25	15
26	2
27	1
28	1
29	3
30	17
31	-21
32	-21
33	17
34	3
35	1
36	1
37	4
38	20
39	-4
40	-42
41	-4
42	20
43	4
44	1
45	1
46	5
47	24
48	16
49	210
50	210
51	16
52	24
53	5
54	1
55	1
56	6
57	29
58	40
59	226
60	420
61	226
62	40
63	29
64	6
65	1

[1, 1, 1, 1, -2, 1, 1, -1, -1, 1, 1, 0, -2, 0, 1, 1, 1, 14, 14, 1, 1, 1, 2, 15, 28, 15, 2, 1, 1, 3, 17, -21, -21, 17, 3, 1, 1, 4, 20, -4, -42, -4, 20, 4, 1, 1, 5, 24, 16, 210, 210, 16, 24, 5, 1, 1, 6, 29, 40, 226, 420, 226, 40, 29, 6, 1]

cp's OEIS Frontend

A173120 Triangle T(n, k, q) = q[n=2] + Sum_{j=0..5} q^jbinomial(n-2j, k-j)[n>2*j] with T(n,0) = T(n,n) = 1 for q = -4, read by rows.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	-2
5	1
6	1
7	-1
8	-1
9	1
10	1
11	0
12	-2
13	0
14	1
15	1
16	1
17	14
18	14
19	1
20	1
21	1
22	2
23	15
24	28
25	15
26	2
27	1
28	1
29	3
30	17
31	-21
32	-21
33	17
34	3
35	1
36	1
37	4
38	20
39	-4
40	-42
41	-4
42	20
43	4
44	1
45	1
46	5
47	24
48	16
49	210
50	210
51	16
52	24
53	5
54	1
55	1
56	6
57	29
58	40
59	226
60	420
61	226
62	40
63	29
64	6
65	1

n	a(n)
0	1
1	1
2	1
3	1
4	-2
5	1
6	1
7	-1
8	-1
9	1
10	1
11	0
12	-2
13	0
14	1
15	1
16	1
17	14
18	14
19	1
20	1
21	1
22	2
23	15
24	28
25	15
26	2
27	1
28	1
29	3
30	17
31	-21
32	-21
33	17
34	3
35	1
36	1
37	4
38	20
39	-4
40	-42
41	-4
42	20
43	4
44	1
45	1
46	5
47	24
48	16
49	210
50	210
51	16
52	24
53	5
54	1
55	1
56	6
57	29
58	40
59	226
60	420
61	226
62	40
63	29
64	6
65	1

cp's OEIS Frontend

A173120 Triangle T(n, k, q) = q*[n=2] + Sum_{j=0..5} q^j*binomial(n-2*j, k-j)*[n>2*j] with T(n,0) = T(n,n) = 1 for q = -4, read by rows.

Table of values

List of values

A173120 Triangle T(n, k, q) = q[n=2] + Sum_{j=0..5} q^jbinomial(n-2j, k-j)[n>2*j] with T(n,0) = T(n,n) = 1 for q = -4, read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	-2
5	1
6	1
7	-1
8	-1
9	1
10	1
11	0
12	-2
13	0
14	1
15	1
16	1
17	14
18	14
19	1
20	1
21	1
22	2
23	15
24	28
25	15
26	2
27	1
28	1
29	3
30	17
31	-21
32	-21
33	17
34	3
35	1
36	1
37	4
38	20
39	-4
40	-42
41	-4
42	20
43	4
44	1
45	1
46	5
47	24
48	16
49	210
50	210
51	16
52	24
53	5
54	1
55	1
56	6
57	29
58	40
59	226
60	420
61	226
62	40
63	29
64	6
65	1