A108561 - cp's OEIS frontend

A108561 Triangle read by rows: T(n,0)=1, T(n,n)=(-1)^n, T(n+1,k)=T(n,k-1)+T(n,k) for 0 < k < n.

n	a(n)
0	1
1	1
2	-1
3	1
4	0
5	1
6	1
7	1
8	1
9	-1
10	1
11	2
12	2
13	0
14	1
15	1
16	3
17	4
18	2
19	1
20	-1
21	1
22	4
23	7
24	6
25	3
26	0
27	1
28	1
29	5
30	11
31	13
32	9
33	3
34	1
35	-1
36	1
37	6
38	16
39	24
40	22
41	12
42	4
43	0
44	1
45	1
46	7
47	22
48	40
49	46
50	34
51	16
52	4
53	1
54	-1
55	1
56	8
57	29
58	62
59	86
60	80
61	50
62	20
63	5
64	0
65	1
66	1
67	9
68	37
69	91
70	148
71	166
72	130
73	70
74	25
75	5
76	1
77	-1
78	1
79	10
80	46
81	128
82	239
83	314
84	296
85	200
86	95
87	30
88	6
89	0
90	1
91	1
92	11
93	56
94	174
95	367

[1, 1, -1, 1, 0, 1, 1, 1, 1, -1, 1, 2, 2, 0, 1, 1, 3, 4, 2, 1, -1, 1, 4, 7, 6, 3, 0, 1, 1, 5, 11, 13, 9, 3, 1, -1, 1, 6, 16, 24, 22, 12, 4, 0, 1, 1, 7, 22, 40, 46, 34, 16, 4, 1, -1, 1, 8, 29, 62, 86, 80, 50, 20, 5, 0, 1, 1, 9, 37, 91, 148, 166, 130, 70, 25, 5, 1, -1, 1, 10, 46, 128, 239, 314, 296, 200, 95, 30, 6, 0, 1, 1, 11, 56, 174, 367]

cp's OEIS Frontend

A108561 Triangle read by rows: T(n,0)=1, T(n,n)=(-1)^n, T(n+1,k)=T(n,k-1)+T(n,k) for 0 < k < n.

Table of values

List of values

n	a(n)
0	1
1	1
2	-1
3	1
4	0
5	1
6	1
7	1
8	1
9	-1
10	1
11	2
12	2
13	0
14	1
15	1
16	3
17	4
18	2
19	1
20	-1
21	1
22	4
23	7
24	6
25	3
26	0
27	1
28	1
29	5
30	11
31	13
32	9
33	3
34	1
35	-1
36	1
37	6
38	16
39	24
40	22
41	12
42	4
43	0
44	1
45	1
46	7
47	22
48	40
49	46
50	34
51	16
52	4
53	1
54	-1
55	1
56	8
57	29
58	62
59	86
60	80
61	50
62	20
63	5
64	0
65	1
66	1
67	9
68	37
69	91
70	148
71	166
72	130
73	70
74	25
75	5
76	1
77	-1
78	1
79	10
80	46
81	128
82	239
83	314
84	296
85	200
86	95
87	30
88	6
89	0
90	1
91	1
92	11
93	56
94	174
95	367

n	a(n)
0	1
1	1
2	-1
3	1
4	0
5	1
6	1
7	1
8	1
9	-1
10	1
11	2
12	2
13	0
14	1
15	1
16	3
17	4
18	2
19	1
20	-1
21	1
22	4
23	7
24	6
25	3
26	0
27	1
28	1
29	5
30	11
31	13
32	9
33	3
34	1
35	-1
36	1
37	6
38	16
39	24
40	22
41	12
42	4
43	0
44	1
45	1
46	7
47	22
48	40
49	46
50	34
51	16
52	4
53	1
54	-1
55	1
56	8
57	29
58	62
59	86
60	80
61	50
62	20
63	5
64	0
65	1
66	1
67	9
68	37
69	91
70	148
71	166
72	130
73	70
74	25
75	5
76	1
77	-1
78	1
79	10
80	46
81	128
82	239
83	314
84	296
85	200
86	95
87	30
88	6
89	0
90	1
91	1
92	11
93	56
94	174
95	367

n	a(n)
0	1
1	1
2	-1
3	1
4	0
5	1
6	1
7	1
8	1
9	-1
10	1
11	2
12	2
13	0
14	1
15	1
16	3
17	4
18	2
19	1
20	-1
21	1
22	4
23	7
24	6
25	3
26	0
27	1
28	1
29	5
30	11
31	13
32	9
33	3
34	1
35	-1
36	1
37	6
38	16
39	24
40	22
41	12
42	4
43	0
44	1
45	1
46	7
47	22
48	40
49	46
50	34
51	16
52	4
53	1
54	-1
55	1
56	8
57	29
58	62
59	86
60	80
61	50
62	20
63	5
64	0
65	1
66	1
67	9
68	37
69	91
70	148
71	166
72	130
73	70
74	25
75	5
76	1
77	-1
78	1
79	10
80	46
81	128
82	239
83	314
84	296
85	200
86	95
87	30
88	6
89	0
90	1
91	1
92	11
93	56
94	174
95	367