a(n) is the ratio of the sum of squares of the bends of the circles that are added in the n-th generation of Apollonian packing, to the sum of squares of the bends of the initial three circles.
A154637
a(n) is the ratio of the sum of squares of the bends of the circles that are added in the n-th generation of Apollonian packing, to the sum of squares of the bends of the initial three circles.
Terms
- a(0) =1a(1) =2a(2) =66a(3) =1314a(4) =26082a(5) =517698a(6) =10275714a(7) =203961186a(8) =4048396578a(9) =80356048002
External references
- oeis: A154637