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.

A357837 a(n) is the sum of the lengths of all the segments used to draw a square of side n representing a fishbone pattern using symmetric L-shaped tiles with side length 2.

Table of values

n a(n)
0 0
1 4
2 10
3 20
4 32
5 46
6 64
7 84
8 106
9 132
10 160
11 190
12 224
13 260
14 298
15 340
16 384
17 430
18 480
19 532
20 586
21 644
22 704
23 766
24 832
25 900
26 970
27 1044
28 1120
29 1198
30 1280
31 1364
32 1450
33 1540
34 1632
35 1726
36 1824
37 1924
38 2026
39 2132
40 2240
41 2350
42 2464
43 2580
44 2698
45 2820
46 2944
47 3070
48 3200
49 3332

List of values

[0, 4, 10, 20, 32, 46, 64, 84, 106, 132, 160, 190, 224, 260, 298, 340, 384, 430, 480, 532, 586, 644, 704, 766, 832, 900, 970, 1044, 1120, 1198, 1280, 1364, 1450, 1540, 1632, 1726, 1824, 1924, 2026, 2132, 2240, 2350, 2464, 2580, 2698, 2820, 2944, 3070, 3200, 3332]