On the amplitude of intervals of natural numbers whose every element has a common prime divisor with at least an extremity.

Patrick Cégielski François Heroult Denis Richard On the amplitude of intervals of natural numbers whose every element has a common prime divisor with at least an extremity. 53-62 2003 1 Theor. Comput. Sci. 303 http://dx.doi.org/10.1016/S0304-3975(02)00444-9 db/journals/tcs/tcs303.html#CegielskiHR03