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 A378926 #18 Dec 26 2024 20:13:59 %S A378926 1,2,3,4,5,6,7,8,9,13,14,17,23,27,30,31,63,77,97,173,313 %N A378926 Positive numbers whose squares have at most two digits less than 9. %C A378926 No terms > 313 with less than 16 digits. %C A378926 No terms > 313 with less than 1040 digits. - _Michael S. Branicky_, Dec 11 2024 %e A378926 313 is a term because 313^2 = 97969 has only two digits that are less than 9. %t A378926 Select[Range[10^6], Count[IntegerDigits[#^2], _?(#1 < 9 &)] < 3&] %Y A378926 Cf. A053934, A360822, A378925, A378927. %K A378926 nonn,base %O A378926 1,2 %A A378926 _Zhining Yang_, Dec 11 2024