Cubes for which the sum of the digits is a square.

Terms

a(0) =0a(1) =1a(2) =27a(3) =216a(4) =1000a(5) =27000a(6) =216000a(7) =287496a(8) =884736a(9) =970299a(10) =1000000a(11) =1860867a(12) =2146689a(13) =3581577a(14) =3796416a(15) =4019679a(16) =5000211a(17) =6128487a(18) =6434856a(19) =6751269a(20) =7414875a(21) =7762392a(22) =10077696a(23) =14348907a(24) =15438249a(25) =16581375a(26) =21717639a(27) =22425768a(28) =26198073a(29) =27000000