128376

Appears in sequences

• Number of (3+1)X(n+1) 0..1 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically.at n=15A253700
• Number of essentially series nonequivalent series-parallel networks with n elements and without unit elements in parallel.at n=20A339151
• Records in A376772.at n=44A376773