Number of 3-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions.
A187298
Number of 3-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions.
Terms
- a(0) =0a(1) =2a(2) =36a(3) =98a(4) =198a(5) =330a(6) =494a(7) =690a(8) =918a(9) =1178a(10) =1470a(11) =1794a(12) =2150a(13) =2538a(14) =2958a(15) =3410a(16) =3894a(17) =4410a(18) =4958a(19) =5538a(20) =6150a(21) =6794a(22) =7470a(23) =8178a(24) =8918a(25) =9690a(26) =10494a(27) =11330a(28) =12198a(29) =13098
External references
- oeis: A187298