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A061492 a(1) = 8, a(n) = least number such that the concatenation a(n)a(n-1)...a(1) is a cube. 0

%I #5 Mar 05 2015 12:24:36

%S 8,172,1585108,4768417578272894,

%T 931322574615480750806365966798663150842303643

%N a(1) = 8, a(n) = least number such that the concatenation a(n)a(n-1)...a(1) is a cube.

%e a(1) = 8, a(2) = 172, a(2)a(1) = 1728 = 12^3.

%Y Cf. A061359, A061361, A061363, A061491.

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, May 06 2001

%E Corrected and extended by Ulrich Schimke (ulrschimke(AT)aol.com), Nov 06 2001. Next element has 135 digits.

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Last modified May 8 16:29 EDT 2024. Contains 372340 sequences. (Running on oeis4.)