A135849 - cp's OEIS frontend

A135849 a(n) is the ratio of the sum of the bends (curvatures) of the circles in the n-th generation of an Apollonian packing to the sum of the bends in the initial four-circle configuration.

n	a(n)
1	1
2	5
3	39
4	297
5	2259
6	17181
7	130671
8	993825
9	7558587
10	57487221
11	437222007
12	3325314393
13	25290849123
14	192350849805
15	1462934251071
16	11126421459153
17	84622568920011
18	643601286982629
19	4894942589100999
20	37228736851860105
21	283145067047577843
22	2153474325825042429

[1, 5, 39, 297, 2259, 17181, 130671, 993825, 7558587, 57487221, 437222007, 3325314393, 25290849123, 192350849805, 1462934251071, 11126421459153, 84622568920011, 643601286982629, 4894942589100999, 37228736851860105, 283145067047577843, 2153474325825042429]

cp's OEIS Frontend

A135849 a(n) is the ratio of the sum of the bends (curvatures) of the circles in the n-th generation of an Apollonian packing to the sum of the bends in the initial four-circle configuration.

Table of values

List of values