1011111100

Appears in sequences

• Binary representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 371", based on the 5-celled von Neumann neighborhood.at n=18A281518
• a(n) is a binary Boolean flag indicating whether A322269(n) is a square mod prime(x) for x = 1..n.at n=8A322270