Number of closed knight's tours in the first 2n cells of a 5 X ceiling(2n/5) board.
A383661
Number of closed knight's tours in the first 2n cells of a 5 X ceiling(2n/5) board.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =30a(4) =0a(5) =148a(6) =8a(7) =78a(8) =9309a(9) =612a(10) =62749a(11) =44202a(12) =42049a(13) =2916485a(14) =147192a(15) =18284136a(16) =13311268a(17) =13008389a(18) =973107552a(19) =51147756a(20) =6190192748a(21) =4557702762a(22) =4311375354a(23) =316985255470a(24) =16552301184
External references
- oeis: A383661