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.

A210671 Number of equivalence classes of S_n under transformations of positionally adjacent elements of the form abc <--> acb <--> bac <--> cba, where a

Table of values

n a(n)
0 1
1 1
2 2
3 3
4 4
5 5
6 8
7 11
8 20
9 29
10 57

List of values

[1, 1, 2, 3, 4, 5, 8, 11, 20, 29, 57]