Cogrowth sequence for the Heisenberg group.
A307468
Cogrowth sequence for the Heisenberg group.
Terms
- a(0) =1a(1) =4a(2) =28a(3) =232a(4) =2156a(5) =21944a(6) =240280a(7) =2787320a(8) =33820044a(9) =424925872a(10) =5486681368a(11) =72398776344a(12) =972270849512
External references
- oeis: A307468