Prouhet–Thue–Morse constant
In mathematics , the Prouhet–Thue–Morse constant , named for Eugène Prouhet , Axel Thue , and Marston Morse , is the number—denoted by —whose binary expansion . 01101001100101101001011001101001 . . . 
<triplet> Prouhet–Thue–Morse constant <subj> Axel Thue <obj> named after <subj> Marston Morse <obj> named after