2,1

Table of n, a(n) for n=2..17.

a(3) = 42 (base 5) because the 3rd number coprime to 5 is 3, and 3 does not divide any substring of a(3).

Sequence in context: A220857 A157537 A322893 * A119577 A051273 A160873

Adjacent sequences: A114940 A114941 A114942 * A114944 A114945 A114946

nonn,base

Don Reble, Feb 20 2006

approved