Number of ways to arrange 7 nonattacking knights on the lower triangle of an n X n board.
A194491
Number of ways to arrange 7 nonattacking knights on the lower triangle of an n X n board.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =88a(5) =3300a(6) =58630a(7) =641678a(8) =5025711a(9) =30209361a(10) =147914590a(11) =614046090a(12) =2226985986a(13) =7218141771a(14) =21280624486a(15) =57867863073a(16) =146765501360a(17) =350324696309a(18) =792870137966
External references
- oeis: A194491