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 A175959 #4 Aug 14 2014 18:29:24 %S A175959 1,4,15,16,19,21,22,25,28,45,51,75,81,82,86,90,91,94,98,102,106,110, %T A175959 113,114,118,121,122,126,130,139,140,153,161,172,179,193,201,233,241, %U A175959 243,273,281,313,315,321,340,353,354,359,363,364,369,374,377,379,380,384 %N A175959 Positions of 1's in A001191 (Digits of squares). %t A175959 Flatten[Position[Flatten[IntegerDigits/@(Range[200]^2)],1]] (* _Harvey P. Dale_, Aug 14 2014 *) %Y A175959 Cf. A001191 %K A175959 base,nonn %O A175959 1,2 %A A175959 _Zak Seidov_, Oct 30 2010