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.

A273717 Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k L-shaped corners (n>=2, k>=0).

Table of values

n a(n)
2 1
3 2
4 4
5 1
6 8
7 5
8 16
9 18
10 1
11 32
12 56
13 9
14 64
15 160
16 50
17 1
18 128
19 432
20 220
21 14
22 256
23 1120
24 840
25 110
26 1
27 512
28 2816
29 2912
30 645
31 20
32 1024
33 6912
34 9408
35 3150
36 210
37 1
38 2048
39 16640
40 28800
41 13552
42 1575
43 27
44 4096
45 39424
46 84480
47 53088
48 9534
49 364
50 1
51 8192
52 92160
53 239360
54 193440
55 49644
56 3388
57 35
58 16384
59 212992
60 658944
61 665280
62 231000
63 24822
64 588

List of values

[1, 2, 4, 1, 8, 5, 16, 18, 1, 32, 56, 9, 64, 160, 50, 1, 128, 432, 220, 14, 256, 1120, 840, 110, 1, 512, 2816, 2912, 645, 20, 1024, 6912, 9408, 3150, 210, 1, 2048, 16640, 28800, 13552, 1575, 27, 4096, 39424, 84480, 53088, 9534, 364, 1, 8192, 92160, 239360, 193440, 49644, 3388, 35, 16384, 212992, 658944, 665280, 231000, 24822, 588]