cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A132888 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 height k (0<=k<=floor(n/2)).

Table of values

n a(n)
0 1
1 1
2 2
3 1
4 3
5 3
6 5
7 10
8 1
9 8
10 27
11 5
12 13
13 72
14 23
15 1
16 21
17 183
18 86
19 7
20 34
21 459
22 302
23 40
24 1
25 55
26 1134
27 994
28 185
29 9
30 89
31 2782
32 3158
33 778
34 61
35 1
36 144
37 6786
38 9742
39 3027
40 332
41 11
42 233
43 16498
44 29450
45 11196
46 1607
47 86
48 1
49 377
50 40014
51 87602
52 39795
53 7117
54 535
55 13

List of values

[1, 1, 2, 1, 3, 3, 5, 10, 1, 8, 27, 5, 13, 72, 23, 1, 21, 183, 86, 7, 34, 459, 302, 40, 1, 55, 1134, 994, 185, 9, 89, 2782, 3158, 778, 61, 1, 144, 6786, 9742, 3027, 332, 11, 233, 16498, 29450, 11196, 1607, 86, 1, 377, 40014, 87602, 39795, 7117, 535, 13]