Number of Eulerian paths in a lattice graph bounded by the four equations x+y=1, x+y=2n, x-y=2, and x-y=-2.
A252863
Number of Eulerian paths in a lattice graph bounded by the four equations x+y=1, x+y=2n, x-y=2, and x-y=-2.
Terms
- a(0) =1a(1) =16a(2) =304a(3) =5824a(4) =111616a(5) =2139136a(6) =40996864a(7) =785711104a(8) =15058272256a(9) =288594067456
External references
- oeis: A252863