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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.

A344467 Numbers that return to the origin when performing a non-backtracking walk on a 2D square lattice where at each step the walk moves as close as possible to the origin and the step lengths are the ordered prime factors of the integers, starting with a step of length 1.

Table of values

n a(n)
1 4
2 28
3 39
4 190
5 794
6 4656
7 17064
8 130800
9 1753625
10 5154759

List of values

[4, 28, 39, 190, 794, 4656, 17064, 130800, 1753625, 5154759]

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

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