Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 4500 articles have referenced us, often saying "we would not have discovered this result without the OEIS".
The numbers are the full lyrics for the song, sung in Swedish to the tune "Ritsch-ratsch". It is often referred to as "Siffervisan" - "The number song".
Table of n, a(n) for n=1..41.
M. Norbäck, Web directory with lilypond source, midi and images of the song..
Sequence in context: A116172 A238820 A000329 * A198704 A198623 A198651
Adjacent sequences: A091975 A091976 A091977 * A091979 A091980 A091981
Stefan Karlsson (stefan.karlsson(AT)inv.his.se)