65289domain: NAppears in sequencesa(n) = a(n-1) + a(n-2) + a(n-3) - a(n-4) with a(0) = a(1) = a(2) = 0, a(3) = 1.at n=24A116732Number of 7Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors not equal to itself.at n=16A265997