A188440 - cp's OEIS frontend

A188440 Triangle T(n,k) read by rows: number of size-k antisymmetric subsets of {1,2,...,n}.

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	2
6	1
7	4
8	4
9	1
10	4
11	4
12	1
13	6
14	12
15	8
16	1
17	6
18	12
19	8
20	1
21	8
22	24
23	32
24	16
25	1
26	8
27	24
28	32
29	16
30	1
31	10
32	40
33	80
34	80
35	32
36	1
37	10
38	40
39	80
40	80
41	32
42	1
43	12
44	60
45	160
46	240
47	192
48	64
49	1
50	12
51	60
52	160
53	240
54	192
55	64
56	1
57	14
58	84
59	280
60	560
61	672
62	448
63	128
64	1
65	14
66	84
67	280

[1, 1, 1, 2, 1, 2, 1, 4, 4, 1, 4, 4, 1, 6, 12, 8, 1, 6, 12, 8, 1, 8, 24, 32, 16, 1, 8, 24, 32, 16, 1, 10, 40, 80, 80, 32, 1, 10, 40, 80, 80, 32, 1, 12, 60, 160, 240, 192, 64, 1, 12, 60, 160, 240, 192, 64, 1, 14, 84, 280, 560, 672, 448, 128, 1, 14, 84, 280]

cp's OEIS Frontend

A188440 Triangle T(n,k) read by rows: number of size-k antisymmetric subsets of {1,2,...,n}.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	2
6	1
7	4
8	4
9	1
10	4
11	4
12	1
13	6
14	12
15	8
16	1
17	6
18	12
19	8
20	1
21	8
22	24
23	32
24	16
25	1
26	8
27	24
28	32
29	16
30	1
31	10
32	40
33	80
34	80
35	32
36	1
37	10
38	40
39	80
40	80
41	32
42	1
43	12
44	60
45	160
46	240
47	192
48	64
49	1
50	12
51	60
52	160
53	240
54	192
55	64
56	1
57	14
58	84
59	280
60	560
61	672
62	448
63	128
64	1
65	14
66	84
67	280

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	2
6	1
7	4
8	4
9	1
10	4
11	4
12	1
13	6
14	12
15	8
16	1
17	6
18	12
19	8
20	1
21	8
22	24
23	32
24	16
25	1
26	8
27	24
28	32
29	16
30	1
31	10
32	40
33	80
34	80
35	32
36	1
37	10
38	40
39	80
40	80
41	32
42	1
43	12
44	60
45	160
46	240
47	192
48	64
49	1
50	12
51	60
52	160
53	240
54	192
55	64
56	1
57	14
58	84
59	280
60	560
61	672
62	448
63	128
64	1
65	14
66	84
67	280

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	2
6	1
7	4
8	4
9	1
10	4
11	4
12	1
13	6
14	12
15	8
16	1
17	6
18	12
19	8
20	1
21	8
22	24
23	32
24	16
25	1
26	8
27	24
28	32
29	16
30	1
31	10
32	40
33	80
34	80
35	32
36	1
37	10
38	40
39	80
40	80
41	32
42	1
43	12
44	60
45	160
46	240
47	192
48	64
49	1
50	12
51	60
52	160
53	240
54	192
55	64
56	1
57	14
58	84
59	280
60	560
61	672
62	448
63	128
64	1
65	14
66	84
67	280