Number of ways to place n nonattacking semi-bishops on an n X n board.
A187235
Number of ways to place n nonattacking semi-bishops on an n X n board.
Terms
- a(0) =1a(1) =5a(2) =51a(3) =769a(4) =15345a(5) =381065a(6) =11323991a(7) =391861841a(8) =15476988033a(9) =687029386845
External references
- oeis: A187235