A344391 - cp's OEIS frontend

A344391 T(n, k) = binomial(n - k, k) * factorial(k), for n >= 0 and 0 <= k <= floor(n/2). Triangle read by rows.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	2
6	1
7	3
8	2
9	1
10	4
11	6
12	1
13	5
14	12
15	6
16	1
17	6
18	20
19	24
20	1
21	7
22	30
23	60
24	24
25	1
26	8
27	42
28	120
29	120
30	1
31	9
32	56
33	210
34	360
35	120
36	1
37	10
38	72
39	336
40	840
41	720
42	1
43	11
44	90
45	504
46	1680
47	2520
48	720
49	1
50	12
51	110
52	720
53	3024
54	6720
55	5040
56	1
57	13
58	132
59	990
60	5040
61	15120
62	20160
63	5040

[1, 1, 1, 1, 1, 2, 1, 3, 2, 1, 4, 6, 1, 5, 12, 6, 1, 6, 20, 24, 1, 7, 30, 60, 24, 1, 8, 42, 120, 120, 1, 9, 56, 210, 360, 120, 1, 10, 72, 336, 840, 720, 1, 11, 90, 504, 1680, 2520, 720, 1, 12, 110, 720, 3024, 6720, 5040, 1, 13, 132, 990, 5040, 15120, 20160, 5040]

cp's OEIS Frontend

A344391 T(n, k) = binomial(n - k, k) * factorial(k), for n >= 0 and 0 <= k <= floor(n/2). Triangle read by rows.

Table of values

List of values