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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.

A317293 a(n) is the total number of vertices after n-th stage in the diagram of the symmetries of sigma in which the parts of width > 1 are dissected into subparts of width 1, with a(0) = 1.

Table of values

n a(n)
0 1
1 4
2 7
3 11
4 16
5 20
6 28
7 32
8 39
9 46
10 54
11 58
12 72
13 76
14 84
15 96
16 107
17 111
18 126
19 130
20 144
21 156
22 164
23 168
24 190
25 199
26 207
27 219
28 235
29 239

List of values

[1, 4, 7, 11, 16, 20, 28, 32, 39, 46, 54, 58, 72, 76, 84, 96, 107, 111, 126, 130, 144, 156, 164, 168, 190, 199, 207, 219, 235, 239]

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

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