This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A117685 #11 Aug 30 2025 04:15:22 %S A117685 0,1,100,3969,7569,8649,10000,12996,13689,15876,19881,33489,34596, %T A117685 36864,42849,45369,46656,47961,49284,51984,54756,56169,59049,66564, %U A117685 71289,74529,76176,77841,79524,82944,84681,86436,88209,91809,93636,95481,97344,99225 %N A117685 Squares for which the sum of the digits are cubes. %H A117685 Harvey P. Dale, <a href="/A117685/b117685.txt">Table of n, a(n) for n = 0..1000</a> %e A117685 8649 is in the sequence because it is a square and the sum of the digits 8+6+4+9=27 is a cube. %t A117685 Select[Range[0,400]^2,IntegerQ[Power[Total[IntegerDigits[#]], (3)^-1]]&] (* _Harvey P. Dale_, Jan 28 2012 *) %Y A117685 Cf. A000290, A000578, A004159. %K A117685 nonn,base,changed %O A117685 0,3 %A A117685 Luc Stevens (lms022(AT)yahoo.com), Apr 12 2006 %E A117685 Corrected (a(18) inserted) and extended by _Harvey P. Dale_, Jan 28 2012