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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.

A235118 Number of independent vertex subsets of the graph obtained by attaching two pendant edges to each vertex of the ladder graph L_n (L_n is the 2 X n grid graph; see A235117).

Table of values

n a(n)
0 1
1 24
2 544
3 12416
4 283136
5 6457344
6 147267584
7 3358621696
8 76597559296
9 1746902974464
10 39840303284224
11 908607856050176
12 20721936531193856
13 472589633411088384
14 10777996606218174464
15 245805668662673145856
16 5605905156051426082816
17 127849665915439602991104

List of values

[1, 24, 544, 12416, 283136, 6457344, 147267584, 3358621696, 76597559296, 1746902974464, 39840303284224, 908607856050176, 20721936531193856, 472589633411088384, 10777996606218174464, 245805668662673145856, 5605905156051426082816, 127849665915439602991104]

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

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