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.

A226454 The number of squares added in the n-th step of a Pythagoras tree of the 30-60-90 triangle.

Table of values

n a(n)
1 1
2 2
3 4
4 8
5 16
6 30
7 54
8 98
9 180
10 332
11 612
12 1120
13 2046
14 3736

List of values

[1, 2, 4, 8, 16, 30, 54, 98, 180, 332, 612, 1120, 2046, 3736]