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.

A278134 Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k horizontal steps in the valleys (n>=2, k>=0).

Table of values

n a(n)
2 1
3 2
4 5
5 13
6 34
7 1
8 89
9 7
10 1
11 233
12 34
13 7
14 1
15 610
16 141
17 35
18 7
19 1
20 1597
21 534
22 152
23 36
24 7
25 1
26 4181
27 1905
28 611
29 163
30 37
31 7
32 1
33 10946
34 6512
35 2338
36 689
37 174
38 38
39 7
40 1
41 28657
42 21557
43 8641
44 2787
45 768
46 185
47 39
48 7
49 1
50 75025
51 69593
52 31104
53 10921
54 3252
55 848
56 196
57 40
58 7
59 1

List of values

[1, 2, 5, 13, 34, 1, 89, 7, 1, 233, 34, 7, 1, 610, 141, 35, 7, 1, 1597, 534, 152, 36, 7, 1, 4181, 1905, 611, 163, 37, 7, 1, 10946, 6512, 2338, 689, 174, 38, 7, 1, 28657, 21557, 8641, 2787, 768, 185, 39, 7, 1, 75025, 69593, 31104, 10921, 3252, 848, 196, 40, 7, 1]