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.

A158431 Number of permutations of 1..n containing the relative rank sequence { 45231 } at any spacing.

Table of values

n a(n)
5 1
6 26
7 458
8 6995
9 101027
10 1436898
11 20572392
12 300418660
13 4513021536
14 70158846231
15 1133525183816
16 19092510077724

List of values

[1, 26, 458, 6995, 101027, 1436898, 20572392, 300418660, 4513021536, 70158846231, 1133525183816, 19092510077724]