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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
1
1, 2, 6, 21, 2145, 2145, 2685, 6225, 6885 (list; graph; listen)
OFFSET

1,2

EXAMPLE

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

CROSSREFS

Adjacent sequences: A084389 A084390 A084391 this_sequence A084393 A084394 A084395

Sequence in context: A110306 A028936 A066932 this_sequence A129534 A085286 A062085

KEYWORD

base,nonn,easy,fini,full

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), May 31 2003

EXTENSIONS

Edited and extended by David Wasserman (wasserma(AT)spawar.navy.mil), Dec 20 2004

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.


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