Number of 10-step S, E, and NW-moving king's tours on an n X n board summed over all starting positions.

A187515

Number of 10-step S, E, and NW-moving king's tours on an n X n board summed over all starting positions.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =398a(4) =3868a(5) =13796a(6) =31548a(7) =56952a(8) =89684a(9) =129637a(10) =176796a(11) =231161a(12) =292732a(13) =361509a(14) =437492a(15) =520681a(16) =611076a(17) =708677a(18) =813484a(19) =925497a(20) =1044716a(21) =1171141a(22) =1304772a(23) =1445609a(24) =1593652a(25) =1748901a(26) =1911356a(27) =2081017a(28) =2257884a(29) =2441957

External references