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.

A335861 Number of regions in a Y-shaped polygon with equal arms of length n (see the Comments for definition).

Table of values

n a(n)
0 1
1 70
2 349
3 916
4 1474
5 2296
6 3412
7 4978
8 7042
9 9748
10 13132
11 17506
12 22786
13 29410
14 37288
15 46630
16 57574

List of values

[1, 70, 349, 916, 1474, 2296, 3412, 4978, 7042, 9748, 13132, 17506, 22786, 29410, 37288, 46630, 57574]