Number of 7-turn bishop's tours on an n X n board summed over all starting positions.

A188782

Number of 7-turn bishop's tours on an n X n board summed over all starting positions.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =784a(4) =40496a(5) =451104a(6) =2803552a(7) =12139552a(8) =41792672a(9) =121269248a(10) =310362944a(11) =718151344a(12) =1534460624a(13) =3067048224a(14) =5801302304a(15) =10464095808a(16) =18125622336a(17) =30299632896a(18) =49104515712a(19) =77410664016a(20) =119081302128a(21) =179178580768

External references