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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.

A001002 Number of dissections of a convex (n+2)-gon into triangles and quadrilaterals by nonintersecting diagonals.

Table of values

n a(n)
0 1
1 1
2 3
3 10
4 38
5 154
6 654
7 2871
8 12925
9 59345
10 276835
11 1308320
12 6250832
13 30142360
14 146510216
15 717061938
16 3530808798
17 17478955570
18 86941210950
19 434299921440
20 2177832612120
21 10959042823020
22 55322023332420
23 280080119609550
24 1421744205767418
25 7234759677699954

List of values

[1, 1, 3, 10, 38, 154, 654, 2871, 12925, 59345, 276835, 1308320, 6250832, 30142360, 146510216, 717061938, 3530808798, 17478955570, 86941210950, 434299921440, 2177832612120, 10959042823020, 55322023332420, 280080119609550, 1421744205767418, 7234759677699954]

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

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