Number of 5-step S, NW and NE-moving king's tours on an n X n board summed over all starting positions.

A187379

Number of 5-step S, NW and NE-moving king's tours on an n X n board summed over all starting positions.

Terms

    a(0) =0a(1) =0a(2) =40a(3) =188a(4) =487a(5) =924a(6) =1499a(7) =2212a(8) =3063a(9) =4052a(10) =5179a(11) =6444a(12) =7847a(13) =9388a(14) =11067a(15) =12884a(16) =14839a(17) =16932a(18) =19163a(19) =21532a(20) =24039a(21) =26684a(22) =29467a(23) =32388a(24) =35447a(25) =38644a(26) =41979a(27) =45452a(28) =49063a(29) =52812

External references