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 A084392 For k not divisible by 10, let f(k) be the number obtained by moving the last digit of k to the front. Then a(n) is the smallest k > 0, made of nonzero digits, such that for all 1 <= i < n, i+1 divides f^i(k). 0

%I

%S 1,2,6,21,2145,2145,2685,6225,6885

%N For k not divisible by 10, let f(k) be the number obtained by moving the last digit of k to the front. Then a(n) is the smallest k > 0, made of nonzero digits, such that for all 1 <= i < n, i+1 divides f^i(k).

%e a(5) = 2145 because 2 divides 5214, 3 divides 4521, 4 divides 1452 and 5 divides 2145.

%K base,nonn,easy,fini,full

%O 1,2

%A _Amarnath Murthy_, May 31 2003

%E Edited and extended by _David Wasserman_, Dec 20 2004

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Last modified September 25 22:13 EDT 2020. Contains 337346 sequences. (Running on oeis4.)