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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 * A276203 A198704 A198623
Adjacent sequences: A091975 A091976 A091977 * A091979 A091980 A091981
Stefan Karlsson (stefan.karlsson(AT)inv.his.se)