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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.

A273346 Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having area k (n>=2, k>=1).

Table of values

n a(n)
2 1
3 0
4 2
5 0
6 0
7 4
8 1
9 0
10 0
11 0
12 7
13 4
14 2
15 0
16 0
17 0
18 0
19 12
20 9
21 9
22 4
23 1
24 0
25 0
26 0
27 0
28 0
29 21
30 18
31 22
32 18
33 12
34 4
35 2
36 0
37 0
38 0
39 0
40 0
41 0
42 37
43 37
44 47
45 45
46 46
47 29
48 20
49 9
50 4
51 1
52 0
53 0
54 0
55 0
56 0
57 0
58 0
59 65
60 76
61 103
62 100
63 116
64 100
65 89
66 60
67 43
68 24
69 12
70 4
71 2

List of values

[1, 0, 2, 0, 0, 4, 1, 0, 0, 0, 7, 4, 2, 0, 0, 0, 0, 12, 9, 9, 4, 1, 0, 0, 0, 0, 0, 21, 18, 22, 18, 12, 4, 2, 0, 0, 0, 0, 0, 0, 37, 37, 47, 45, 46, 29, 20, 9, 4, 1, 0, 0, 0, 0, 0, 0, 0, 65, 76, 103, 100, 116, 100, 89, 60, 43, 24, 12, 4, 2]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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