98571domain: NAppears in sequencesNumber of Twopins positions.at n=28A005690Maximal number of pairs of minimal vectors in n-dimensional laminated lattice.at n=27A028924a(n) = 14*a(n-1)-43*a(n-2) for n > 1; a(0) = 1, a(1) = 11.at n=5A164553