Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".
Table of n, a(n) for n=0..80.
with(numtheory, cyclotomic); c := n->series(1/cyclotomic(n, x), x, 80);
Sequence in context: A015182 A057559 A205375 * A099837 A100051 A122876
Adjacent sequences: A016007 A016008 A016009 * A016011 A016012 A016013