cp's OEIS Frontend

A273877 Least positive integer k such that k^3 + (k+1)^3 + ... + (k+n-2)^3 + (k+n-1)^3 is the sum of two positive cubes. a(n) = 0 if no solution exists.

%I A273877 #13 Jun 08 2016 00:31:06
%S A273877 0,1,11,2,10,31,6,70,4,42,4,4,15,174,6,2,70,556,18,378,2,119,4277,6,8,
%T A273877 5,33111,3,2088,61,7,7,145,417,8,13,9,1424,23,18,106,101,7,39,138,276,
%U A273877 13353,48,1,31,645,2981,107627,34,155,11,8,214,62,25,103,28
%N A273877 Least positive integer k such that k^3 + (k+1)^3 + ... + (k+n-2)^3 + (k+n-1)^3 is the sum of two positive cubes. a(n) = 0 if no solution exists.
%C A273877 What is the most repeated value of this sequence?
%H A273877 Chai Wah Wu, <a href="/A273877/b273877.txt">Table of n, a(n) for n = 1..200</a>
%e A273877 a(3) = 11 because 11^3 + 12^3 + 13^3 = 7^3 + 17^3.
%Y A273877 Cf. A003325, A217843.
%K A273877 nonn
%O A273877 1,3
%A A273877 _Altug Alkan_, Jun 02 2016
%E A273877 a(10)-a(62) from _Giovanni Resta_, Jun 03 2016
%E A273877 a(49) corrected by _Chai Wah Wu_, Jun 07 2016