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.

A187216 Q-toothpick sequence starting with two opposite Q-toothpicks centered at the same grid point.

Table of values

n a(n)
0 0
1 2
2 8
3 16
4 30
5 52
6 82
7 104
8 142
9 196
10 266
11 288
12 326
13 380
14 450
15 504
16 606
17 756
18 890
19 912
20 950
21 1004
22 1074
23 1128
24 1230
25 1380
26 1514
27 1568
28 1670
29 1820
30 1986
31 2168
32 2494
33 2900
34 3162
35 3184
36 3222
37 3276
38 3346
39 3400
40 3502
41 3652
42 3786
43 3840
44 3942
45 4092
46 4258
47 4440

List of values

[0, 2, 8, 16, 30, 52, 82, 104, 142, 196, 266, 288, 326, 380, 450, 504, 606, 756, 890, 912, 950, 1004, 1074, 1128, 1230, 1380, 1514, 1568, 1670, 1820, 1986, 2168, 2494, 2900, 3162, 3184, 3222, 3276, 3346, 3400, 3502, 3652, 3786, 3840, 3942, 4092, 4258, 4440]