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.

A039699 Number of 4-dimensional cubic lattice walks that start and end at the origin after 2n steps, free to pass through origin at intermediate stages.

Table of values

n a(n)
0 1
1 8
2 168
3 5120
4 190120
5 7939008
6 357713664
7 16993726464
8 839358285480
9 42714450658880
10 2225741588095168
11 118227198981126144
12 6380762273973278464
13 349019710593278412800
14 19310744204362333900800
15 1079054103459778710405120
16 60818479243449308702049960

List of values

[1, 8, 168, 5120, 190120, 7939008, 357713664, 16993726464, 839358285480, 42714450658880, 2225741588095168, 118227198981126144, 6380762273973278464, 349019710593278412800, 19310744204362333900800, 1079054103459778710405120, 60818479243449308702049960]

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

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