Total domination number of the n-Apollonian network.

Terms

a(0) =2a(1) =2a(2) =3a(3) =4a(4) =7a(5) =16a(6) =43a(7) =124a(8) =367a(9) =1096a(10) =3283a(11) =9844a(12) =29527a(13) =88576a(14) =265723a(15) =797164a(16) =2391487a(17) =7174456a(18) =21523363a(19) =64570084a(20) =193710247a(21) =581130736a(22) =1743392203a(23) =5230176604a(24) =15690529807a(25) =47071589416a(26) =141214768243a(27) =423644304724