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.

A227621 The nearest integer of perimeter of T-square (fractal) after n-iterations, starting with a unit square.

Table of values

n a(n)
0 4
1 8
2 14
3 23
4 37
5 57
6 87
7 133
8 201
9 304
10 457
11 688
12 1034
13 1553
14 2331
15 3499
16 5251
17 7878
18 11819
19 17731
20 26598
21 39899
22 59851
23 89778
24 134669
25 202005
26 303010
27 454517
28 681778
29 1022668
30 1534004
31 2301009
32 3451515
33 5177275
34 7765914

List of values

[4, 8, 14, 23, 37, 57, 87, 133, 201, 304, 457, 688, 1034, 1553, 2331, 3499, 5251, 7878, 11819, 17731, 26598, 39899, 59851, 89778, 134669, 202005, 303010, 454517, 681778, 1022668, 1534004, 2301009, 3451515, 5177275, 7765914]