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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.

A244362 Total number of toothpicks after n-th stage in the toothpick structure of the symmetric representation of sigma in the first quadrant (without the axes x and y).

Table of values

n a(n)
1 2
2 6
3 12
4 20
5 28
6 40
7 50
8 66
9 82
10 102
11 116
12 140
13 156
14 182
15 208
16 240
17 260
18 296
19 318
20 358
21 394
22 432
23 458
24 506
25 540
26 584
27 628
28 684

List of values

[2, 6, 12, 20, 28, 40, 50, 66, 82, 102, 116, 140, 156, 182, 208, 240, 260, 296, 318, 358, 394, 432, 458, 506, 540, 584, 628, 684]

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

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