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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.

A115255 "Correlation triangle" of central binomial coefficients A000984.

Table of values

n a(n)
0 1
1 2
2 2
3 6
4 5
5 6
6 20
7 14
8 14
9 20
10 70
11 46
12 41
13 46
14 70
15 252
16 160
17 134
18 134
19 160
20 252
21 924
22 574
23 466
24 441
25 466
26 574
27 924
28 3432
29 2100
30 1672
31 1534
32 1534
33 1672
34 2100
35 3432
36 12870
37 7788
38 6118
39 5506
40 5341
41 5506
42 6118
43 7788
44 12870
45 48620
46 29172
47 22692
48 20152
49 19174

List of values

[1, 2, 2, 6, 5, 6, 20, 14, 14, 20, 70, 46, 41, 46, 70, 252, 160, 134, 134, 160, 252, 924, 574, 466, 441, 466, 574, 924, 3432, 2100, 1672, 1534, 1534, 1672, 2100, 3432, 12870, 7788, 6118, 5506, 5341, 5506, 6118, 7788, 12870, 48620, 29172, 22692, 20152, 19174]

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

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