A328001 - cp's OEIS frontend

A328001 T(n, k) = k!(n-k)!/(floor(k/2)!floor((n-k)/2)!)^2. Triangle read by rows, 0 <= k <= n.

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	2
6	6
7	2
8	2
9	6
10	6
11	6
12	4
13	6
14	6
15	30
16	6
17	12
18	12
19	6
20	30
21	20
22	30
23	12
24	36
25	12
26	30
27	20
28	140
29	20
30	60
31	36
32	36
33	60
34	20
35	140
36	70
37	140
38	40
39	180
40	36
41	180
42	40
43	140
44	70
45	630
46	70
47	280
48	120
49	180
50	180
51	120
52	280
53	70
54	630
55	252
56	630
57	140
58	840
59	120
60	900
61	120
62	840
63	140
64	630
65	252

[1, 1, 1, 2, 1, 2, 6, 2, 2, 6, 6, 6, 4, 6, 6, 30, 6, 12, 12, 6, 30, 20, 30, 12, 36, 12, 30, 20, 140, 20, 60, 36, 36, 60, 20, 140, 70, 140, 40, 180, 36, 180, 40, 140, 70, 630, 70, 280, 120, 180, 180, 120, 280, 70, 630, 252, 630, 140, 840, 120, 900, 120, 840, 140, 630, 252]

cp's OEIS Frontend

A328001 T(n, k) = k!(n-k)!/(floor(k/2)!floor((n-k)/2)!)^2. Triangle read by rows, 0 <= k <= n.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	2
6	6
7	2
8	2
9	6
10	6
11	6
12	4
13	6
14	6
15	30
16	6
17	12
18	12
19	6
20	30
21	20
22	30
23	12
24	36
25	12
26	30
27	20
28	140
29	20
30	60
31	36
32	36
33	60
34	20
35	140
36	70
37	140
38	40
39	180
40	36
41	180
42	40
43	140
44	70
45	630
46	70
47	280
48	120
49	180
50	180
51	120
52	280
53	70
54	630
55	252
56	630
57	140
58	840
59	120
60	900
61	120
62	840
63	140
64	630
65	252

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	2
6	6
7	2
8	2
9	6
10	6
11	6
12	4
13	6
14	6
15	30
16	6
17	12
18	12
19	6
20	30
21	20
22	30
23	12
24	36
25	12
26	30
27	20
28	140
29	20
30	60
31	36
32	36
33	60
34	20
35	140
36	70
37	140
38	40
39	180
40	36
41	180
42	40
43	140
44	70
45	630
46	70
47	280
48	120
49	180
50	180
51	120
52	280
53	70
54	630
55	252
56	630
57	140
58	840
59	120
60	900
61	120
62	840
63	140
64	630
65	252

cp's OEIS Frontend

A328001 T(n, k) = k!*(n-k)!/(floor(k/2)!*floor((n-k)/2)!)^2. Triangle read by rows, 0 <= k <= n.

Table of values

List of values

A328001 T(n, k) = k!(n-k)!/(floor(k/2)!floor((n-k)/2)!)^2. Triangle read by rows, 0 <= k <= n.

n	a(n)
0	1
1	1
2	1
3	2
4	1
5	2
6	6
7	2
8	2
9	6
10	6
11	6
12	4
13	6
14	6
15	30
16	6
17	12
18	12
19	6
20	30
21	20
22	30
23	12
24	36
25	12
26	30
27	20
28	140
29	20
30	60
31	36
32	36
33	60
34	20
35	140
36	70
37	140
38	40
39	180
40	36
41	180
42	40
43	140
44	70
45	630
46	70
47	280
48	120
49	180
50	180
51	120
52	280
53	70
54	630
55	252
56	630
57	140
58	840
59	120
60	900
61	120
62	840
63	140
64	630
65	252