The Danish composer Per Nørgård's "infinity sequence", invented in an attempt to unify in a perfect way repetition and variation: a(2n) = -a(n), a(2n+1) = a(n) + 1, a(0)=0.
http://robertinventor.com/ftswiki/Self_Similar_Sloth_Canon_Number_Sequences
The Danish composer Per Nørgård's "infinity sequence", invented in an attempt to unify in a perfect way repetition and variation: a(2n) = -a(n), a(2n+1) = a(n) + 1, a(0)=0.
http://robertinventor.com/ftswiki/Self_Similar_Sloth_Canon_Number_Sequences