

A195897


Number of ways to place a queen, a rook, a bishop, a knight and a king on an n X n chessboard such that each piece attacks the same number of unoccupied spaces.


1




OFFSET

4,1


LINKS



EXAMPLE

There are 64 ways to place 5 different chess pieces on an 8 X 8 chessboard with the above condition.
An example for a 4 X 4 board is
...Q
..NK
B...
R...


CROSSREFS



KEYWORD

fini,full,nonn


AUTHOR



STATUS

approved



