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 A180155 a(1)=1; thereafter, a(n) is the smallest integer k not yet in the sequence, such that k^3 contains in consecutive digits the decimal representation of a(n-1). 1

%I #8 Mar 31 2012 10:24:15

%S 1,5,8,2,3,7,9,13,11,45,77,53,37,15,25,50,43,29,31,39,34,70,30,67,23,

%T 47,63,55,78,83,18,44,14,52,28,12,58,87,35,33,46,36,82,24,72,38,62,64,

%U 4,16,6,19,27,32,51,57,26,21,41,81,61,56,86,92,48,22,74,42,75,91,17,49,66,124,104,134,238,155,316,185,228,364,272,103,101,106,102,217,279,359,175

%N a(1)=1; thereafter, a(n) is the smallest integer k not yet in the sequence, such that k^3 contains in consecutive digits the decimal representation of a(n-1).

%H Jean-Marc Falcoz, <a href="/A180155/b180155.txt">Table of n, a(n) for n = 1..10000</a>

%e a(1)=1

%e a(2)=5, because 5^3=125 which contains 1

%e ...

%e a(8)=13

%e a(9)=11, because 11^3=1331, which contains 13

%e a(10)=45, because 45^3=91125, which contains 11

%e a(11)=77, because 77^3=456533, which contains 45

%K nonn,base

%O 1,2

%A _Jean-Marc Falcoz_, Jan 16 2011

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