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 A291631 #11 Sep 09 2017 03:32:07 %S A291631 26,83,264,313,824,836,883,887,937,3114,8167,8813,8887,8937,9417,9833, %T A291631 25824,26264,29614,29626,89324,89437,93637,94863,98336,260167,262617, %U A291631 314113,817863,817924,818333,818474,823887,828667,835386,875614,931117,936417,937383 %N A291631 Numbers k such that 6 is the smallest decimal digit of k^2. %C A291631 9949370777987917 is the smallest number k such that the smallest decimal digit of k^2 is 7. - _Chai Wah Wu_, Sep 08 2017 %H A291631 Chai Wah Wu, <a href="/A291631/b291631.txt">Table of n, a(n) for n = 1..10001</a> %e A291631 26 is in the sequence because 26^2 = 676, the smallest decimal digit of which is 6. %t A291631 Select[Range[10^6], Min[IntegerDigits[#^2]]==6 &] (* _Vincenzo Librandi_, Sep 09 2017 *) %o A291631 (PARI) select(k->vecmin(digits(k^2))==6, vector(1000000, k, k)) %Y A291631 Cf. A291625, A291626, A291627, A291628, A291629, A291630. %K A291631 nonn,base %O A291631 1,1 %A A291631 _Colin Barker_, Aug 28 2017