A257532 - cp's OEIS frontend

A257532 Triangle, read by rows, T(n,k)=k/nSum_{i=0..n-k} C(2n,n-k-i)C(2n+i-1,i).

n	a(n)
1	1
2	4
3	1
4	24
5	8
6	1
7	172
8	64
9	12
10	1
11	1360
12	536
13	120
14	16
15	1
16	11444
17	4672
18	1156
19	192
20	20
21	1
22	100520
23	42024
24	11088
25	2096
26	280
27	24
28	1
29	911068
30	387456
31	106908
32	22016
33	3420
34	384
35	28
36	1
37	8457504
38	3643448
39	1038984
40	227408
41	39120
42	5192
43	504
44	32
45	1

[1, 4, 1, 24, 8, 1, 172, 64, 12, 1, 1360, 536, 120, 16, 1, 11444, 4672, 1156, 192, 20, 1, 100520, 42024, 11088, 2096, 280, 24, 1, 911068, 387456, 106908, 22016, 3420, 384, 28, 1, 8457504, 3643448, 1038984, 227408, 39120, 5192, 504, 32, 1]

cp's OEIS Frontend

A257532 Triangle, read by rows, T(n,k)=k/nSum_{i=0..n-k} C(2n,n-k-i)C(2n+i-1,i).

Table of values

List of values

cp's OEIS Frontend

A257532 Triangle, read by rows, T(n,k)=k/n*Sum_{i=0..n-k} C(2*n,n-k-i)*C(2*n+i-1,i).

Table of values

List of values

A257532 Triangle, read by rows, T(n,k)=k/nSum_{i=0..n-k} C(2n,n-k-i)C(2n+i-1,i).