a(n) is the number of configurations of n indistinguishable pairs placed on the vertices of the ladder graph P_2 X P_n such that only one such pair is joined by an edge.
A318244
a(n) is the number of configurations of n indistinguishable pairs placed on the vertices of the ladder graph P_2 X P_n such that only one such pair is joined by an edge.
Terms
- a(0) =1a(1) =0a(2) =8a(3) =34a(4) =347a(5) =3666a(6) =47484a(7) =707480a(8) =11971341a(9) =226599568a(10) =4744010444a(11) =108834109034
External references
- oeis: A318244