94416domain: NAppears in sequencesExpansion of 1/((1-4x)(1-6x)(1-8x)(1-10x)).at n=4A028136Number of (n+1) X (2+1) 0..2 arrays with every 2 X 2 subblock diagonal maximum minus antidiagonal minimum unequal to its neighbors horizontally, vertically, diagonally and antidiagonally.at n=7A253463