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.

A273350 Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k up steps (n >= 2, k >= 1).

Table of values

n a(n)
2 1
3 1
4 1
5 1
6 3
7 1
8 1
9 6
10 5
11 1
12 1
13 10
14 16
15 7
16 1
17 1
18 15
19 40
20 31
21 9
22 1
23 1
24 21
25 85
26 105
27 51
28 11
29 1
30 1
31 28
32 161
33 295
34 219
35 76
36 13
37 1
38 1
39 36
40 280
41 721
42 771
43 396
44 106
45 15
46 1
47 1
48 45
49 456
50 1582
51 2331
52 1681
53 650
54 141
55 17
56 1
57 1
58 55
59 705
60 3186
61 6244
62 6083
63 3235
64 995
65 181
66 19
67 1

List of values

[1, 1, 1, 1, 3, 1, 1, 6, 5, 1, 1, 10, 16, 7, 1, 1, 15, 40, 31, 9, 1, 1, 21, 85, 105, 51, 11, 1, 1, 28, 161, 295, 219, 76, 13, 1, 1, 36, 280, 721, 771, 396, 106, 15, 1, 1, 45, 456, 1582, 2331, 1681, 650, 141, 17, 1, 1, 55, 705, 3186, 6244, 6083, 3235, 995, 181, 19, 1]