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.

A367015 Number of regions formed after n points have been placed in general position on each edge of the triangle in A365929.

Table of values

n a(n)
0 1
1 4
2 28
3 136
4 445
5 1126
6 2404
7 4558
8 7921
9 12880
10 19876
11 29404
12 42013
13 58306
14 78940
15 104626
16 136129
17 174268
18 219916
19 274000
20 337501
21 411454
22 496948
23 595126
24 707185
25 834376
26 978004
27 1139428
28 1320061
29 1521370
30 1744876
31 1992154
32 2264833
33 2564596
34 2893180
35 3252376
36 3644029
37 4070038

List of values

[1, 4, 28, 136, 445, 1126, 2404, 4558, 7921, 12880, 19876, 29404, 42013, 58306, 78940, 104626, 136129, 174268, 219916, 274000, 337501, 411454, 496948, 595126, 707185, 834376, 978004, 1139428, 1320061, 1521370, 1744876, 1992154, 2264833, 2564596, 2893180, 3252376, 3644029, 4070038]

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

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