A246183 - cp's OEIS frontend

A246183 Triangle read by rows: T(n,k) is the number of weighted lattice paths B(n) having k HH's. B(n) is the set of lattice paths of weight n that start in (0,0), end on the horizontal axis and never go below this axis, whose steps are of the following four kinds: a (1,0)-step h of weight 1; a (1,0)-step H of weight 2; a (1,1)-step u of weight 2; a (1,-1)-step d of weight 1. The weight of a path is the sum of the weights of its steps.

n	a(n)
0	1
1	1
2	2
3	4
4	7
5	1
6	15
7	2
8	33
9	3
10	1
11	71
12	9
13	2
14	158
15	23
16	3
17	1
18	357
19	54
20	10
21	2
22	812
23	136
24	26
25	3
26	1
27	1869
28	338
29	63
30	11
31	2
32	4338
33	835
34	167
35	29
36	3
37	1
38	10134
39	2087
40	428
41	72
42	12
43	2
44	23829
45	5216
46	1092
47	199
48	32
49	3
50	1
51	56341
52	13046
53	2826
54	523
55	81
56	13
57	2

[1, 1, 2, 4, 7, 1, 15, 2, 33, 3, 1, 71, 9, 2, 158, 23, 3, 1, 357, 54, 10, 2, 812, 136, 26, 3, 1, 1869, 338, 63, 11, 2, 4338, 835, 167, 29, 3, 1, 10134, 2087, 428, 72, 12, 2, 23829, 5216, 1092, 199, 32, 3, 1, 56341, 13046, 2826, 523, 81, 13, 2]

cp's OEIS Frontend

Table of values

List of values