Number of edge covers in the ladder graph P_2 x P_n.
A286911
Number of edge covers in the ladder graph P_2 x P_n.
Terms
- a(0) =1a(1) =7a(2) =43a(3) =277a(4) =1777a(5) =11407a(6) =73219a(7) =469981a(8) =3016729a(9) =19363879a(10) =124293499a(11) =797819173a(12) =5121067777a(13) =32871277183a(14) =210995228083
External references
- oeis: A286911