Number of ways to place 3n nonattacking kings on a 6 X 2n chessboard.
A061594
Number of ways to place 3n nonattacking kings on a 6 X 2n chessboard.
Terms
- a(0) =1a(1) =32a(2) =408a(3) =3600a(4) =26040a(5) =166368a(6) =976640a(7) =5392704a(8) =28432288a(9) =144605184a(10) =714611200a(11) =3449705600a(12) =16333065216a(13) =76081271168a(14) =349524164224
External references
- oeis: A061594