A254882 - cp's OEIS frontend

A254882 Triangle read by rows, T(n,k) = Sum_{j=0..k-1} S(n,j+1)*S(n,k-j) where S denotes the Stirling cycle numbers A132393, T(0,0)=1, n>=0, 0<=k<=2n-1.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	2
6	1
7	0
8	4
9	12
10	13
11	6
12	1
13	0
14	36
15	132
16	193
17	144
18	58
19	12
20	1
21	0
22	576
23	2400
24	4180
25	3980
26	2273
27	800
28	170
29	20
30	1
31	0
32	14400
33	65760
34	129076
35	143700
36	100805
37	46710
38	14523
39	3000
40	395
41	30
42	1
43	0
44	518400
45	2540160
46	5450256
47	6787872
48	5482456
49	3034920
50	1184153

[1, 0, 1, 0, 1, 2, 1, 0, 4, 12, 13, 6, 1, 0, 36, 132, 193, 144, 58, 12, 1, 0, 576, 2400, 4180, 3980, 2273, 800, 170, 20, 1, 0, 14400, 65760, 129076, 143700, 100805, 46710, 14523, 3000, 395, 30, 1, 0, 518400, 2540160, 5450256, 6787872, 5482456, 3034920, 1184153]

cp's OEIS Frontend

A254882 Triangle read by rows, T(n,k) = Sum_{j=0..k-1} S(n,j+1)*S(n,k-j) where S denotes the Stirling cycle numbers A132393, T(0,0)=1, n>=0, 0<=k<=2n-1.

Table of values

List of values