import numpy as np
import itertools as it

n=6
li=[]

for i in it.product([0, 1], repeat = n**2):

  if (np.reshape(np.array(i), (n, n)).sum(axis=1)  < 2).all() and (np.reshape(np.array(i), (n, n)).sum(axis=0)< 2).all() :
    if (np.transpose(np.reshape(np.array(i), (n, n))) != np.reshape(np.array(i), (n, n))).any():

      li.append(np.reshape(np.array(i), (n, n)))