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A069572 Smallest n-digit number in which the k-th digit (from the right!) is a divisor of k, greater than 1 unless k has no single-digit divisor > 1. 2

%I

%S 1,21,321,2321,52321,252321,7252321,27252321,327252321,2327252321,

%T 12327252321,212327252321,1212327252321,21212327252321,

%U 321212327252321,2321212327252321,12321212327252321,212321212327252321

%N Smallest n-digit number in which the k-th digit (from the right!) is a divisor of k, greater than 1 unless k has no single-digit divisor > 1.

%Y Cf. A069570, A069571.

%K nonn,base

%O 1,2

%A _Amarnath Murthy_, Mar 24 2002

%E a(12) corrected by _Martin Ward_, Feb 12 2013

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Last modified June 12 10:58 EDT 2021. Contains 344947 sequences. (Running on oeis4.)