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.

A159091 Number of permutations of 1..n containing the relative rank sequence { 132645 } at any spacing.

Table of values

n a(n)
6 1
7 37
8 892
9 18096
10 338925
11 6125833
12 109468530
13 1962169602
14 35601982205
15 657898464017

List of values

[1, 37, 892, 18096, 338925, 6125833, 109468530, 1962169602, 35601982205, 657898464017]