Triangle T(n,k), n>=0, 0<=k<=2n, read by rows: row n gives the coefficients of the chromatic polynomial of the complete bipartite graph K_(n,n), highest powers first.
A212084
Triangle T(n,k), n>=0, 0<=k<=2n, read by rows: row n gives the coefficients of the chromatic polynomial of the complete bipartite graph K_(n,n), highest powers first.
Terms
- a(0) =1a(1) =1a(2) =-1a(3) =0a(4) =1a(5) =-4a(6) =6a(7) =-3a(8) =0a(9) =1a(10) =-9a(11) =36a(12) =-75a(13) =78a(14) =-31a(15) =0a(16) =1a(17) =-16a(18) =120a(19) =-524a(20) =1400a(21) =-2236a(22) =1930a(23) =-675a(24) =0a(25) =1a(26) =-25a(27) =300a(28) =-2200a(29) =10650
External references
- oeis: A212084