Number of 7-step S, E, and NW-moving king's tours on an n X n board summed over all starting positions.
A187512
Number of 7-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) =20a(3) =330a(4) =1224a(5) =2726a(6) =4807a(7) =7458a(8) =10679a(9) =14470a(10) =18831a(11) =23762a(12) =29263a(13) =35334a(14) =41975a(15) =49186a(16) =56967a(17) =65318a(18) =74239a(19) =83730a(20) =93791a(21) =104422a(22) =115623a(23) =127394a(24) =139735a(25) =152646a(26) =166127a(27) =180178a(28) =194799a(29) =209990
External references
- oeis: A187512