A103306 - cp's OEIS frontend

A103306 Triangle read by rows: T(n,k) = number of k-subsets of the n-th roots of 1 that add to zero (0 <= k <= n).

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

[1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 2, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 3, 2, 3, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 4, 0, 6, 0, 4, 0, 1, 1, 0, 0, 3, 0, 0, 3, 0, 0, 1, 1, 0, 5, 0, 10, 2, 10, 0, 5, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 6, 4, 15, 12, 24, 12, 15, 4, 6, 0, 1, 1, 0, 0, 0, 0]

cp's OEIS Frontend

A103306 Triangle read by rows: T(n,k) = number of k-subsets of the n-th roots of 1 that add to zero (0 <= k <= n).

Table of values

List of values

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

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

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