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.

A329713 The number of regions inside a heptagon 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 50
2 868
3 5594
4 18396
5 48462
6 101794
7 195714
8 336504
9 549704
10 841890
11 1249676
12 1774612
13 2468572
14 3328234
15 4414054
16 5725034
17 7336855
18 9233098
19 11513419
20 14149296
21 17254434
22 20805554
23 24928380
24 29573348
25 34902155
26 40861422
27 47613161

List of values

[50, 868, 5594, 18396, 48462, 101794, 195714, 336504, 549704, 841890, 1249676, 1774612, 2468572, 3328234, 4414054, 5725034, 7336855, 9233098, 11513419, 14149296, 17254434, 20805554, 24928380, 29573348, 34902155, 40861422, 47613161]

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

Content is available under The OEIS End-User License Agreement.