A356654 - cp's OEIS frontend

A356654 Triangle read by rows. T(n, k) = k! * Sum_{j=k..n} Lah(n, j) * Stirling2(j, k), where Lah(n, k) = A271703(n, k).

n	a(n)
0	1
1	0
2	1
3	0
4	3
5	2
6	0
7	13
8	18
9	6
10	0
11	73
12	158
13	108
14	24
15	0
16	501
17	1510
18	1590
19	720
20	120
21	0
22	4051
23	15962
24	23040
25	15960
26	5400
27	720
28	0
29	37633
30	186270
31	345786
32	325920
33	168000
34	45360
35	5040
36	0
37	394353
38	2385182
39	5469492
40	6579384
41	4594800
42	1884960
43	423360
44	40320

[1, 0, 1, 0, 3, 2, 0, 13, 18, 6, 0, 73, 158, 108, 24, 0, 501, 1510, 1590, 720, 120, 0, 4051, 15962, 23040, 15960, 5400, 720, 0, 37633, 186270, 345786, 325920, 168000, 45360, 5040, 0, 394353, 2385182, 5469492, 6579384, 4594800, 1884960, 423360, 40320]

cp's OEIS Frontend

A356654 Triangle read by rows. T(n, k) = k! * Sum_{j=k..n} Lah(n, j) * Stirling2(j, k), where Lah(n, k) = A271703(n, k).

Table of values

List of values