Number of graph endomorphisms of undirected cycles of even length: |End(C_2n)|.
A112850
Number of graph endomorphisms of undirected cycles of even length: |End(C_2n)|.
Terms
- a(0) =2a(1) =32a(2) =132a(3) =576a(4) =2540a(5) =11112a(6) =48076a(7) =205952a(8) =875196a(9) =3695160a(10) =15519548a(11) =64899792a(12) =270415652a(13) =1123264856a(14) =4653525660a(15) =19234572544a(16) =79342611548a(17) =326704870872
External references
- oeis: A112850