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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.

A181689 Number of maximal self-avoiding walks from NW to SW corners of a 5 X n grid.

Table of values

n a(n)
1 1
2 0
3 8
4 0
5 86
6 0
7 948
8 0
9 10444
10 0
11 115056
12 0
13 1267512
14 0
15 13963520
16 0
17 153828832
18 0
19 1694652176
20 0
21 18669100976
22 0
23 205667768400
24 0
25 2265734756752
26 0
27 24960420526224
28 0
29 274975961325264
30 0
31 3029267044091408
32 0
33 33371858326057936
34 0
35 367640393509287824
36 0
37 4050102862690348880
38 0
39 44617875206245953552
40 0
41 491531908055724064720
42 0
43 5414951194338345409680
44 0
45 59653698888134291413584
46 0
47 657173751585588653678864
48 0
49 7239741169830151881286864

List of values

[1, 0, 8, 0, 86, 0, 948, 0, 10444, 0, 115056, 0, 1267512, 0, 13963520, 0, 153828832, 0, 1694652176, 0, 18669100976, 0, 205667768400, 0, 2265734756752, 0, 24960420526224, 0, 274975961325264, 0, 3029267044091408, 0, 33371858326057936, 0, 367640393509287824, 0, 4050102862690348880, 0, 44617875206245953552, 0, 491531908055724064720, 0, 5414951194338345409680, 0, 59653698888134291413584, 0, 657173751585588653678864, 0, 7239741169830151881286864]

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