{ "id": "0909.5459", "version": "v1", "published": "2009-09-29T22:28:05.000Z", "updated": "2009-09-29T22:28:05.000Z", "title": "On the Generalized Climbing Stairs Problem", "authors": [ "Edray Herber Goins", "Talitha M. Washington" ], "categories": [ "math.CO" ], "abstract": "Let $\\mathcal S$ be a subset of the positive integers, and $M$ be a positive integer. Mohammad K. Azarian, inspired by work of Tony Colledge, considered the number of ways to climb a staircase containing $n$ stairs using \"step-sizes\" $s \\in \\mathcal S$ and multiplicities at most $M$. In this exposition, we find a solution via generating functions, i.e., an expression which counts the number of partitions $n = \\sum_{s \\in \\mathcal S} m_s s$ satisfying $0 \\leq m_s \\leq M$. We then use this result to answer a series of questions posed by Azarian, thereby showing a link with ten sequences listed in the On-Line Encyclopedia of Integer Sequences. We conclude by posing open questions which seek to count the number of compositions of $n$.", "revisions": [ { "version": "v1", "updated": "2009-09-29T22:28:05.000Z" } ], "analyses": { "subjects": [ "05A15", "05A17" ], "keywords": [ "generalized climbing stairs problem", "positive integer", "tony colledge", "on-line encyclopedia", "integer sequences" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0909.5459H" } } }