A132886 - cp's OEIS frontend

A132886 Triangle read by rows: T(n,k) is the number of paths in the right half-plane, from (0,0) to (n,0), consisting of steps U=(1,1), D=(1,-1), h=(1,0) and H=(2,0), having k U steps (0 <= k <= floor(n/2)).

n	a(n)
0	1
1	1
2	2
3	2
4	3
5	6
6	5
7	18
8	6
9	8
10	44
11	30
12	13
13	102
14	120
15	20
16	21
17	222
18	390
19	140
20	34
21	466
22	1140
23	700
24	70
25	55
26	948
27	3066
28	2800
29	630
30	89
31	1884
32	7770
33	9800
34	3780
35	252
36	144
37	3672
38	18780
39	31080
40	17850
41	2772
42	233
43	7044
44	43710
45	91560
46	72450
47	19404
48	924
49	377
50	13332
51	98610

[1, 1, 2, 2, 3, 6, 5, 18, 6, 8, 44, 30, 13, 102, 120, 20, 21, 222, 390, 140, 34, 466, 1140, 700, 70, 55, 948, 3066, 2800, 630, 89, 1884, 7770, 9800, 3780, 252, 144, 3672, 18780, 31080, 17850, 2772, 233, 7044, 43710, 91560, 72450, 19404, 924, 377, 13332, 98610]

cp's OEIS Frontend

A132886 Triangle read by rows: T(n,k) is the number of paths in the right half-plane, from (0,0) to (n,0), consisting of steps U=(1,1), D=(1,-1), h=(1,0) and H=(2,0), having k U steps (0 <= k <= floor(n/2)).

Table of values

List of values