Number of (not necessarily maximal) cliques in the n-Hanoi graph.

Terms

a(0) =8a(1) =25a(2) =76a(3) =229a(4) =688a(5) =2065a(6) =6196a(7) =18589a(8) =55768a(9) =167305a(10) =501916a(11) =1505749a(12) =4517248a(13) =13551745a(14) =40655236a(15) =121965709a(16) =365897128a(17) =1097691385a(18) =3293074156a(19) =9879222469a(20) =29637667408a(21) =88913002225a(22) =266739006676a(23) =800217020029