A132279 - cp's OEIS frontend

A132279 Triangle read by rows: T(n,k) is the number of paths in the first quadrant from (0,0) to (n,0), consisting of steps U=(1,1), D=(1,-1), h=(1,0) and H=(2,0), having k doublerises (i.e., UU's) (0 <= k <= floor(n/2) - 1 for n >= 2).

n	a(n)
0	1
1	1
2	3
3	6
4	15
5	1
6	36
7	4
8	91
9	17
10	1
11	232
12	60
13	5
14	603
15	206
16	26
17	1
18	1585
19	676
20	110
21	6
22	4213
23	2174
24	444
25	37
26	1
27	11298
28	6868
29	1687
30	182
31	7
32	30537
33	21446
34	6196
35	841
36	50
37	1
38	83097
39	66356
40	22100
41	3612
42	280
43	8
44	227475
45	203914
46	77138
47	14833
48	1455
49	65
50	1

[1, 1, 3, 6, 15, 1, 36, 4, 91, 17, 1, 232, 60, 5, 603, 206, 26, 1, 1585, 676, 110, 6, 4213, 2174, 444, 37, 1, 11298, 6868, 1687, 182, 7, 30537, 21446, 6196, 841, 50, 1, 83097, 66356, 22100, 3612, 280, 8, 227475, 203914, 77138, 14833, 1455, 65, 1]

cp's OEIS Frontend

A132279 Triangle read by rows: T(n,k) is the number of paths in the first quadrant from (0,0) to (n,0), consisting of steps U=(1,1), D=(1,-1), h=(1,0) and H=(2,0), having k doublerises (i.e., UU's) (0 <= k <= floor(n/2) - 1 for n >= 2).

Table of values

List of values