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 A291643 #9 Aug 13 2019 12:29:24 %S A291643 4,36,204,786,842,1682,2114,3795,3859,3863,4429,4459,4559,4635,7644, %T A291643 7913,7914,8183,8286,8372,8744,8864,9144,9263,9599,16592,17094,17863, %U A291643 18923,19035,19563,19829,20364,20635,20776,36264,38183,38389,38432,40186,44216 %N A291643 Numbers k such that 4 is the smallest decimal digit of k^3. %H A291643 Chai Wah Wu, <a href="/A291643/b291643.txt">Table of n, a(n) for n = 1..10000</a> %e A291643 4 is in the sequence because 4^3 = 64, the smallest decimal digit of which is 4. %t A291643 Select[Range[50000],Min[IntegerDigits[#^3]]==4&] (* _Harvey P. Dale_, Aug 13 2019 *) %o A291643 (PARI) select(k->vecmin(digits(k^3))==4, vector(50000, k, k)) %Y A291643 Cf. A291639, A291640, A291641, A291642, A291644. %K A291643 nonn,base %O A291643 1,1 %A A291643 _Colin Barker_, Aug 28 2017