439030021domain: NAppears in sequencesNumber of nX4 (-1,0,1) arrays of determinants of 2X2 subblocks of some (n+1)X5 binary array.at n=5A226713Number of n X 6 (-1,0,1) arrays of determinants of 2 X 2 subblocks of some (n+1) X 7 binary array.at n=3A226715