A104684 - cp's OEIS frontend

A104684 Triangle read by rows: T(n,k) is the number of lattice paths from (0,0) to (n,n) using steps E=(1,0), N=(0,1) and D=(1,1) (i.e., bilateral Schroeder paths), having k D=(1,1) steps.

n	a(n)
0	1
1	2
2	1
3	6
4	6
5	1
6	20
7	30
8	12
9	1
10	70
11	140
12	90
13	20
14	1
15	252
16	630
17	560
18	210
19	30
20	1
21	924
22	2772
23	3150
24	1680
25	420
26	42
27	1
28	3432
29	12012
30	16632
31	11550
32	4200
33	756
34	56
35	1
36	12870
37	51480
38	84084
39	72072
40	34650
41	9240
42	1260
43	72
44	1
45	48620
46	218790
47	411840
48	420420
49	252252

[1, 2, 1, 6, 6, 1, 20, 30, 12, 1, 70, 140, 90, 20, 1, 252, 630, 560, 210, 30, 1, 924, 2772, 3150, 1680, 420, 42, 1, 3432, 12012, 16632, 11550, 4200, 756, 56, 1, 12870, 51480, 84084, 72072, 34650, 9240, 1260, 72, 1, 48620, 218790, 411840, 420420, 252252]

cp's OEIS Frontend

A104684 Triangle read by rows: T(n,k) is the number of lattice paths from (0,0) to (n,n) using steps E=(1,0), N=(0,1) and D=(1,1) (i.e., bilateral Schroeder paths), having k D=(1,1) steps.

Table of values

List of values