Number of Eulerian circuits in the Cartesian product of two directed cycles of lengths n.
A212803
Number of Eulerian circuits in the Cartesian product of two directed cycles of lengths n.
Terms
- a(0) =1a(1) =4a(2) =108a(3) =12800a(4) =6050000a(5) =11218701312
External references
- oeis: A212803