rookIndices :: Integral a => a -> [a]
rookIndices n = nub $ sort $ a273824_row n ++ a273823_row n
rookIndices :: Integral a => a -> [a]
rookIndices n = nub $ sort $ a273824_row n ++ a273823_row n
rookIndices n = nub $ sort $ a273824_row n ++ a273823_row n