vix.ing · top · new · best · stats · spec

The O(1/n85) Asymptotic expansion of OEIS sequence A85

2024/10/19 by Shalosh B. Ekhad, Manuel Kauers, Ekhad, Shalosh B. +3
Computer Science · #Algorithms and Data Compression #Coding theory and cryptography

paper · pdf · doi:10.48550/arxiv.2410.16334

Abstract

One of the most important sequences in enumerative combinatorics is OEIS sequence A85, the number of involutions of length n. In the Art of Computer Programming, vol. 3, Don Knuth derived the O(1/n) asymptotic formula for these numbers. In this modest tribute to our two heroes, Neil Sloane who just turned 85, and Don Knuth who was 85 a year ago, we go all the way to an O(1/n85) asymptotic formula.

Related