Array read by antidiagonals: T(n,m) is the number of spanning trees in the n X m rook graph K_n X K_m.
A384845
Array read by antidiagonals: T(n,m) is the number of spanning trees in the n X m rook graph K_n X K_m.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =4a(5) =3a(6) =16a(7) =75a(8) =75a(9) =16a(10) =125a(11) =3456a(12) =11664a(13) =3456a(14) =125a(15) =1296a(16) =300125a(17) =5647152a(18) =5647152a(19) =300125a(20) =1296a(21) =16807a(22) =42467328a(23) =6291456000a(24) =34359738368a(25) =6291456000a(26) =42467328a(27) =16807a(28) =262144a(29) =8931928887
External references
- oeis: A384845