Number of labeled simple graphs on n vertices without cycles of length 4.

A345249

Number of labeled simple graphs on n vertices without cycles of length 4.

Terms

    a(0) =1a(1) =2a(2) =8a(3) =54a(4) =548a(5) =7984a(6) =163440a(7) =4599908a(8) =174204728a(9) =8721120744a(10) =568964631296

External references