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 A036532 #13 Mar 21 2020 16:33:42 %S A036532 0,125,15625,2515456,365525875,3553559576,1654755935552,535585155561, %T A036532 1552755855549592,32585555653355125,5555455662315755503, %U A036532 10355855655959525557,1587453553555655755059,55569505975375555595375,5454055655655586555645952 %N A036532 Smallest cube containing exactly n 5's. %C A036532 a(n)^(1/3) = A048370(n) is the index of the first occurrence of n in sequence A269245. - _M. F. Hasler_, Feb 21 2016 %H A036532 Giovanni Resta, <a href="/A036532/b036532.txt">Table of n, a(n) for n = 0..21</a> %F A036532 a(n) = A048370(n)^3. - _M. F. Hasler_, Feb 21 2016 %t A036532 nsmall = Table[Infinity, 20]; %t A036532 For[i = 0, i <= 10^6, i++, n0 = Count[IntegerDigits[i^3], 5]; %t A036532 If[nsmall[[n0 + 1]] > i^3, nsmall[[n0 + 1]] = i^3]]; %t A036532 Cases[nsmall, _?NumberQ] (* _Robert Price_, Mar 21 2020 *) %Y A036532 Cf. A048370, A036527 - A036536 for other digits 0 - 9. %K A036532 nonn,base %O A036532 0,2 %A A036532 _David W. Wilson_ %E A036532 Extended with a(0) = 0 by _M. F. Hasler_, Feb 21 2016 %E A036532 a(12)-a(14) from _Giovanni Resta_, Jun 29 2018