A125080 - cp's OEIS frontend

A125080 Triangle, read by rows, defined by T(n,k) = A000108(n-k)A001147(k)C(n,2*k), for k=0..[n/2], n>=0, where A000108 is the Catalan numbers and A001147 is the double factorials.

n	a(n)
0	1
1	1
2	2
3	1
4	5
5	6
6	14
7	30
8	6
9	42
10	140
11	75
12	132
13	630
14	630
15	75
16	429
17	2772
18	4410
19	1470
20	1430
21	12012
22	27720
23	17640
24	1470
25	4862
26	51480
27	162162
28	166320
29	39690
30	16796
31	218790
32	900900
33	1351350
34	623700
35	39690
36	58786
37	923780
38	4813380
39	9909900
40	7432425

[1, 1, 2, 1, 5, 6, 14, 30, 6, 42, 140, 75, 132, 630, 630, 75, 429, 2772, 4410, 1470, 1430, 12012, 27720, 17640, 1470, 4862, 51480, 162162, 166320, 39690, 16796, 218790, 900900, 1351350, 623700, 39690, 58786, 923780, 4813380, 9909900, 7432425]

cp's OEIS Frontend

A125080 Triangle, read by rows, defined by T(n,k) = A000108(n-k)A001147(k)C(n,2*k), for k=0..[n/2], n>=0, where A000108 is the Catalan numbers and A001147 is the double factorials.

Table of values

List of values

cp's OEIS Frontend

A125080 Triangle, read by rows, defined by T(n,k) = A000108(n-k)*A001147(k)*C(n,2*k), for k=0..[n/2], n>=0, where A000108 is the Catalan numbers and A001147 is the double factorials.

Table of values

List of values

A125080 Triangle, read by rows, defined by T(n,k) = A000108(n-k)A001147(k)C(n,2*k), for k=0..[n/2], n>=0, where A000108 is the Catalan numbers and A001147 is the double factorials.