Number of labeled graphs with n nodes and floor(n/2) edges.
A331505
Number of labeled graphs with n nodes and floor(n/2) edges.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =15a(4) =45a(5) =455a(6) =1330a(7) =20475a(8) =58905a(9) =1221759a(10) =3478761a(11) =90858768a(12) =256851595a(13) =8093990190a(14) =22760723700a(15) =840261910995
External references
- oeis: A331505