A359571 - OEIS

%I #13 Sep 01 2023 15:49:40

%S 0,1,6,34,13730

%N Number of (curved) edges after n iterations of constructing circles from all current vertices using only a compass, starting with one vertex. See the Comments.

%C See A359569 and A359570 for further details and images.

%F For n >= 3, a(n) = A359569(n) + A359570(n) - 1 by Euler's formula.

%Y Cf. A359569 (vertices), A359570 (regions), A359619 (k-gons), A359254, A359047, A358783.

%K nonn,more,hard

%O 1,3

%A _Scott R. Shannon_, Jan 06 2023