Number of 6-step left-handed knight's tours (moves only out two, left one) on an n X n board summed over all starting positions.

A187176

Number of 6-step left-handed knight's tours (moves only out two, left one) on an n X n board summed over all starting positions.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =88a(6) =496a(7) =1440a(8) =3064a(9) =5344a(10) =8208a(11) =11640a(12) =15640a(13) =20208a(14) =25344a(15) =31048a(16) =37320a(17) =44160a(18) =51568a(19) =59544a(20) =68088a(21) =77200a(22) =86880a(23) =97128a(24) =107944a(25) =119328a(26) =131280a(27) =143800a(28) =156888a(29) =170544

External references