a(n) is the ratio of the sum of the squares of the bends (curvatures) of the n-th generation of an Apollonian packing to the sum of the squares of the bends of the initial four-circle configuration.
A137246
a(n) is the ratio of the sum of the squares of the bends (curvatures) of the n-th generation of an Apollonian packing to the sum of the squares of the bends of the initial four-circle configuration.
Terms
- a(0) =1a(1) =17a(2) =339a(3) =6729a(4) =133563a(5) =2651073a(6) =52620771a(7) =1044462201a(8) =20731381707a(9) =411494247537
External references
- oeis: A137246