Number of pairs of antipodal vertices in the level n Hanoi graph.

A375256

Number of pairs of antipodal vertices in the level n Hanoi graph.

Terms

    a(0) =3a(1) =12a(2) =39a(3) =129a(4) =453a(5) =1677a(6) =6429a(7) =25149a(8) =99453a(9) =395517a(10) =1577469a(11) =6300669a(12) =25184253a(13) =100700157a(14) =402726909a(15) =1610760189a(16) =6442745853a(17) =25770393597a(18) =103080394749a(19) =412319219709

External references