A271703 - cp's OEIS frontend

A271703 Triangle read by rows: the unsigned Lah numbers T(n, k) = binomial(n-1, k-1)*n!/k! if n > 0 and k > 0, T(n, 0) = 0^n and otherwise 0, for n >= 0 and 0 <= k <= n.

n	a(n)
0	1
1	0
2	1
3	0
4	2
5	1
6	0
7	6
8	6
9	1
10	0
11	24
12	36
13	12
14	1
15	0
16	120
17	240
18	120
19	20
20	1
21	0
22	720
23	1800
24	1200
25	300
26	30
27	1
28	0
29	5040
30	15120
31	12600
32	4200
33	630
34	42
35	1
36	0
37	40320
38	141120
39	141120
40	58800
41	11760
42	1176
43	56
44	1
45	0
46	362880
47	1451520
48	1693440
49	846720
50	211680
51	28224
52	2016
53	72
54	1

[1, 0, 1, 0, 2, 1, 0, 6, 6, 1, 0, 24, 36, 12, 1, 0, 120, 240, 120, 20, 1, 0, 720, 1800, 1200, 300, 30, 1, 0, 5040, 15120, 12600, 4200, 630, 42, 1, 0, 40320, 141120, 141120, 58800, 11760, 1176, 56, 1, 0, 362880, 1451520, 1693440, 846720, 211680, 28224, 2016, 72, 1]

cp's OEIS Frontend

A271703 Triangle read by rows: the unsigned Lah numbers T(n, k) = binomial(n-1, k-1)*n!/k! if n > 0 and k > 0, T(n, 0) = 0^n and otherwise 0, for n >= 0 and 0 <= k <= n.

Table of values

List of values