cp's OEIS Frontend

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.

A054877 Closed walks of length n along the edges of a pentagon based at a vertex.

Table of values

n a(n)
0 1
1 0
2 2
3 0
4 6
5 2
6 20
7 14
8 70
9 72
10 254
11 330
12 948
13 1430
14 3614
15 6008
16 13990
17 24786
18 54740
19 101118
20 215766
21 409640
22 854702
23 1652090
24 3396916
25 6643782
26 13530350
27 26667864
28 53971350
29 106914242
30 215492564
31 428292590
32 860941798
33 1714834440
34 3441074654
35 6863694378

List of values

[1, 0, 2, 0, 6, 2, 20, 14, 70, 72, 254, 330, 948, 1430, 3614, 6008, 13990, 24786, 54740, 101118, 215766, 409640, 854702, 1652090, 3396916, 6643782, 13530350, 26667864, 53971350, 106914242, 215492564, 428292590, 860941798, 1714834440, 3441074654, 6863694378]

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

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