Number of 3-turn queen's tours on an n X n board summed over all starting positions.
A186966
Number of 3-turn queen's tours on an n X n board summed over all starting positions.
Terms
- a(0) =0a(1) =24a(2) =296a(3) =1304a(4) =3808a(5) =8832a(6) =17672a(7) =31888a(8) =53312a(9) =84040a(10) =126440a(11) =183144a(12) =257056a(13) =351344a(14) =469448a(15) =615072a(16) =792192a(17) =1005048a(18) =1258152a(19) =1556280
External references
- oeis: A186966