Apply the morphism X -> XYX, where Y=1 if X contains an odd number of 1's, otherwise Y = 0 n times to 10, and concatenate the resulting string.

A317959

Apply the morphism X -> XYX, where Y=1 if X contains an odd number of 1's, otherwise Y = 0 n times to 10, and concatenate the resulting string.

Terms

    a(0) =10a(1) =10010a(2) =10010110010

External references