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.

A274494 Triangle read by rows: T(n,k) is the number of bargraphs of semiperimeter n having k as the length of the longest initial sequence of the form UHUH... (n>=2, 1<=k<=2*floor(n/2)).

Table of values

n a(n)
2 0
3 1
4 1
5 1
6 3
7 1
8 0
9 1
10 8
11 2
12 1
13 2
14 22
15 5
16 4
17 3
18 0
19 1
20 62
21 13
22 12
23 6
24 1
25 3
26 178
27 35
28 35
29 15
30 5
31 6
32 0
33 1
34 519
35 97
36 103
37 40
38 17
39 13
40 1
41 4
42 1533
43 275
44 306
45 110
46 53
47 33
48 6
49 10
50 0
51 1
52 4578
53 794
54 917
55 310
56 163
57 90
58 23
59 24
60 1
61 5
62 13800
63 2327
64 2770
65 891
66 501
67 253
68 77
69 63
70 7
71 15
72 0
73 1

List of values

[0, 1, 1, 1, 3, 1, 0, 1, 8, 2, 1, 2, 22, 5, 4, 3, 0, 1, 62, 13, 12, 6, 1, 3, 178, 35, 35, 15, 5, 6, 0, 1, 519, 97, 103, 40, 17, 13, 1, 4, 1533, 275, 306, 110, 53, 33, 6, 10, 0, 1, 4578, 794, 917, 310, 163, 90, 23, 24, 1, 5, 13800, 2327, 2770, 891, 501, 253, 77, 63, 7, 15, 0, 1]