A308440 - cp's OEIS frontend

A308440 Matrix product of triangle of Stirling numbers of second kind A008277 and square of unsigned Lah triangle A105278.

n	a(n)
1	1
2	5
3	1
4	37
5	15
6	1
7	365
8	223
9	30
10	1
11	4501
12	3675
13	745
14	50
15	1
16	66605
17	68071
18	18450
19	1865
20	75
21	1
22	1149877
23	1411515
24	479101
25	64750
26	3920
27	105
28	1
29	22687565
30	32512663
31	13260030
32	2244501
33	181650
34	7322
35	140
36	1
37	503589781
38	825175275
39	393017185
40	79948050
41	8103711
42	436590
43	12558
44	180
45	1

[1, 5, 1, 37, 15, 1, 365, 223, 30, 1, 4501, 3675, 745, 50, 1, 66605, 68071, 18450, 1865, 75, 1, 1149877, 1411515, 479101, 64750, 3920, 105, 1, 22687565, 32512663, 13260030, 2244501, 181650, 7322, 140, 1, 503589781, 825175275, 393017185, 79948050, 8103711, 436590, 12558, 180, 1]

cp's OEIS Frontend

A308440 Matrix product of triangle of Stirling numbers of second kind A008277 and square of unsigned Lah triangle A105278.

Table of values

List of values