A185286 - cp's OEIS frontend

A185286 Triangle T(n,k) is the number of nonnegative walks of n steps with step sizes 1 and 2, starting at 0 and ending at k.

n	a(n)
0	1
1	0
2	1
3	1
4	2
5	1
6	1
7	2
8	1
9	2
10	5
11	6
12	3
13	3
14	3
15	1
16	11
17	11
18	13
19	17
20	13
21	7
22	6
23	4
24	1
25	24
26	41
27	52
28	44
29	43
30	40
31	25
32	14
33	10
34	5
35	1
36	93
37	120
38	152
39	176
40	161
41	126
42	107
43	80
44	45
45	25
46	15
47	6
48	1
49	272
50	421
51	550
52	559
53	561
54	524
55	412
56	303
57	227
58	146
59	77
60	41
61	21
62	7
63	1
64	971
65	1381
66	1813
67	2056
68	2045
69	1835
70	1615
71	1309
72	938
73	648
74	435
75	251
76	126
77	63
78	28
79	8
80	1

[1, 0, 1, 1, 2, 1, 1, 2, 1, 2, 5, 6, 3, 3, 3, 1, 11, 11, 13, 17, 13, 7, 6, 4, 1, 24, 41, 52, 44, 43, 40, 25, 14, 10, 5, 1, 93, 120, 152, 176, 161, 126, 107, 80, 45, 25, 15, 6, 1, 272, 421, 550, 559, 561, 524, 412, 303, 227, 146, 77, 41, 21, 7, 1, 971, 1381, 1813, 2056, 2045, 1835, 1615, 1309, 938, 648, 435, 251, 126, 63, 28, 8, 1]

cp's OEIS Frontend

A185286 Triangle T(n,k) is the number of nonnegative walks of n steps with step sizes 1 and 2, starting at 0 and ending at k.

Table of values

List of values