Number of 8-step one or two space at a time rook's tours on an n X n board summed over all starting positions.
A187293
Number of 8-step one or two space at a time rook's tours on an n X n board summed over all starting positions.
Terms
- a(0) =0a(1) =0a(2) =2664a(3) =134944a(4) =866888a(5) =2732016a(6) =6049424a(7) =10906120a(8) =17282088a(9) =25129488a(10) =34417440a(11) =45129696a(12) =57260948a(13) =70809512a(14) =85775112a(15) =102157696a(16) =119957264a(17) =139173816a(18) =159807352a(19) =181857872a(20) =205325376a(21) =230209864a(22) =256511336a(23) =284229792
External references
- oeis: A187293