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.

A340639 The number of regions inside a Reuleaux triangle formed by the straight line segments mutually connecting all vertices and all points that divide the sides into n equal parts.

Table of values

n a(n)
1 1
2 24
3 145
4 516
5 1432
6 3084
7 6106
8 10638
9 17764
10 27336
11 41233
12 58902
13 82675
14 111864
15 149497
16 194430
17 250534
18 316020
19 395728
20 487122
21 596434
22 720162
23 865321
24 1027974
25 1216291
26 1425348
27 1664539
28 1928022
29 2226658
30 2553204
31 2920378
32 3319536
33 3764848
34 4246638
35 4780489
36 5355414
37 5988973

List of values

[1, 24, 145, 516, 1432, 3084, 6106, 10638, 17764, 27336, 41233, 58902, 82675, 111864, 149497, 194430, 250534, 316020, 395728, 487122, 596434, 720162, 865321, 1027974, 1216291, 1425348, 1664539, 1928022, 2226658, 2553204, 2920378, 3319536, 3764848, 4246638, 4780489, 5355414, 5988973]

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

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