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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.

A294849 a(n) is the total number of horizontal line segments that belong to the Dyck paths in the diagram of the symmetries of sigma described in A236104 and A237593 after n-th stage, with a(0) = 0.

Table of values

n a(n)
0 0
1 1
2 2
3 3
4 5
5 6
6 9
7 10
8 13
9 15
10 18
11 19
12 23
13 24
14 27
15 31
16 36
17 37
18 42
19 43
20 48
21 52
22 55
23 56
24 62
25 65
26 68
27 72
28 79
29 80

List of values

[0, 1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 19, 23, 24, 27, 31, 36, 37, 42, 43, 48, 52, 55, 56, 62, 65, 68, 72, 79, 80]

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

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