A247051 - cp's OEIS frontend

A247051 Rectangular array read upwards by columns: T = T(n,k) = number of paths from (0,2) to (n,k), where 0 <= k <= 2, consisting of segments given by the vectors (1,1), (1,2), (1,-1).

n	a(n)
0	0
1	0
2	1
3	0
4	1
5	0
6	1
7	0
8	1
9	0
10	2
11	1
12	2
13	1
14	2
15	1
16	4
17	3
18	4
19	4
20	5
21	4
22	9
23	8
24	9
25	12
26	13
27	12
28	22
29	21
30	22
31	33
32	34
33	33
34	56
35	55
36	56
37	88
38	89
39	88
40	145
41	144
42	145
43	232
44	233
45	232
46	378
47	377
48	378
49	609
50	610
51	609
52	988
53	987
54	988
55	1596
56	1597
57	1596
58	2585
59	2584
60	2585
61	4180
62	4181

[0, 0, 1, 0, 1, 0, 1, 0, 1, 0, 2, 1, 2, 1, 2, 1, 4, 3, 4, 4, 5, 4, 9, 8, 9, 12, 13, 12, 22, 21, 22, 33, 34, 33, 56, 55, 56, 88, 89, 88, 145, 144, 145, 232, 233, 232, 378, 377, 378, 609, 610, 609, 988, 987, 988, 1596, 1597, 1596, 2585, 2584, 2585, 4180, 4181]

cp's OEIS Frontend

A247051 Rectangular array read upwards by columns: T = T(n,k) = number of paths from (0,2) to (n,k), where 0 <= k <= 2, consisting of segments given by the vectors (1,1), (1,2), (1,-1).

Table of values

List of values