A223092 - cp's OEIS frontend

A223092 Triangle read by rows: let T(n,k) (for n >= 0, 0 <= k <= n) be the number of walks from (0,0) to (n,k) using steps (1,1), (1,0), (1,-1) and (0,-1); n-th row of triangle gives T(n,n), T(n,n-1), ..., T(n,0).

n	a(n)
0	1
1	1
2	2
3	1
4	4
5	7
6	1
7	6
8	18
9	29
10	1
11	8
12	33
13	86
14	133
15	1
16	10
17	52
18	179
19	431
20	650
21	1
22	12
23	75
24	316
25	978
26	2238
27	3319
28	1
29	14
30	102
31	505
32	1874
33	5406
34	11941
35	17498
36	1
37	16
38	133
39	754
40	3235
41	11020
42	30241
43	65086
44	94525
45	1
46	18
47	168
48	1071
49	5193
50	20202
51	64698
52	171045
53	360897
54	520508
55	1
56	20
57	207
58	1464
59	7896
60	34362
61	124455
62	380400
63	977040
64	2029490
65	2910895

[1, 1, 2, 1, 4, 7, 1, 6, 18, 29, 1, 8, 33, 86, 133, 1, 10, 52, 179, 431, 650, 1, 12, 75, 316, 978, 2238, 3319, 1, 14, 102, 505, 1874, 5406, 11941, 17498, 1, 16, 133, 754, 3235, 11020, 30241, 65086, 94525, 1, 18, 168, 1071, 5193, 20202, 64698, 171045, 360897, 520508, 1, 20, 207, 1464, 7896, 34362, 124455, 380400, 977040, 2029490, 2910895]

cp's OEIS Frontend

A223092 Triangle read by rows: let T(n,k) (for n >= 0, 0 <= k <= n) be the number of walks from (0,0) to (n,k) using steps (1,1), (1,0), (1,-1) and (0,-1); n-th row of triangle gives T(n,n), T(n,n-1), ..., T(n,0).

Table of values

List of values