Numbers k such that no extremal Groemer packing of k circles exists.

Terms

a(0) =121a(1) =163a(2) =211a(3) =235a(4) =265a(5) =292a(6) =325a(7) =355a(8) =391a(9) =424a(10) =463a(11) =499a(12) =541a(13) =580a(14) =625a(15) =667a(16) =706a(17) =715a(18) =760a(19) =802a(20) =811a(21) =859a(22) =904a(23) =913a(24) =955a(25) =964