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.

A183004 Toothpick sequence on square grid with toothpicks connected by their endpoints.

Table of values

n a(n)
0 0
1 1
2 5
3 11
4 19
5 27
6 43
7 65
8 81
9 89
10 105
11 129
12 153
13 185
14 241
15 303
16 335
17 343
18 359
19 383
20 407
21 439
22 495
23 559
24 599
25 631
26 687
27 759
28 839
29 959
30 1135
31 1293
32 1357
33 1365
34 1381
35 1405
36 1429
37 1461
38 1517
39 1581
40 1621
41 1653
42 1709
43 1781

List of values

[0, 1, 5, 11, 19, 27, 43, 65, 81, 89, 105, 129, 153, 185, 241, 303, 335, 343, 359, 383, 407, 439, 495, 559, 599, 631, 687, 759, 839, 959, 1135, 1293, 1357, 1365, 1381, 1405, 1429, 1461, 1517, 1581, 1621, 1653, 1709, 1781]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.