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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.

A244363 Number of toothpicks added at n-th stage in the toothpick structure of the symmetric representation of sigma of the first n positive integers in the first quadrant (without the axis x and y).

Table of values

n a(n)
1 2
2 4
3 6
4 8
5 8
6 12
7 10
8 16
9 16
10 20
11 14
12 24
13 16
14 26
15 26
16 32
17 20
18 36
19 22
20 40
21 36
22 38
23 26
24 48
25 34
26 44
27 44
28 56
29 32
30 60
31 34
32 64

List of values

[2, 4, 6, 8, 8, 12, 10, 16, 16, 20, 14, 24, 16, 26, 26, 32, 20, 36, 22, 40, 36, 38, 26, 48, 34, 44, 44, 56, 32, 60, 34, 64]

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

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