325990domain: NAppears in sequencesNumber of (w,x,y,z) with all terms in {1,...,n} and w<2x+y+z.at n=24A212145Number of (n+2)X(2+2) 0..1 arrays with no 3x3 subblock diagonal sum 1 and no antidiagonal sum 2 and no row sum 0 and no column sum 3.at n=23A255795