Number of ways of placing n non-attacking queens on an n X n board, with no three queens in a straight line.
A365437
Number of ways of placing n non-attacking queens on an n X n board, with no three queens in a straight line.
Terms
- a(0) =1a(1) =1a(2) =0a(3) =0a(4) =2a(5) =0a(6) =0a(7) =0a(8) =8a(9) =32a(10) =40a(11) =96a(12) =410a(13) =1392a(14) =4416a(15) =18752a(16) =71486a(17) =235056a(18) =1001972a(19) =4285920a(20) =21887710a(21) =94619480a(22) =422557444a(23) =2101021824a(24) =11943690634a(25) =61113195600
External references
- oeis: A365437