I was thinking about Conway's audioactive sequence and how easy it would be to write a perl program generating it. Well, here it is, as a oneliner: 
perl -e '$_=1;print,s/((\d)\2*)/(length$1).$2/ge while~<>'

[download]
(this waits for user to press return before emitting the next term of the sequence.)

By comparison see e.g. this link. (Please note however that it's just a random hit from Google: don't consider it to have an absolute indicative power.)

In reply to Conway's audioactive sequence oneliner by blazar

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