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.

A235648 Perimeter (rounded down) of a tetraflake-like fractal after n iterations, a(1) = 1 (see comments).

Table of values

n a(n)
1 1
2 1
3 2
4 3
5 4
6 7
7 10
8 16
9 25
10 39
11 61
12 97
13 155
14 249
15 404
16 657
17 1073
18 1759
19 2892
20 4768
21 7877
22 13036
23 21602
24 35838
25 59508
26 98885
27 164416
28 273502
29 455137
30 757628
31 1261470
32 2100791
33 3499106
34 5828894
35 9710891
36 16179575
37 26958966
38 44922289
39 74858052
40 124746848
41 207889317

List of values

[1, 1, 2, 3, 4, 7, 10, 16, 25, 39, 61, 97, 155, 249, 404, 657, 1073, 1759, 2892, 4768, 7877, 13036, 21602, 35838, 59508, 98885, 164416, 273502, 455137, 757628, 1261470, 2100791, 3499106, 5828894, 9710891, 16179575, 26958966, 44922289, 74858052, 124746848, 207889317]