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 A068888 #7 Mar 22 2024 17:23:37 %S A068888 1,4,9,25,49,81,256,361,676,729,4761,6561,41616,56169,69696,72361, %T A068888 87616,96721,212521,214369,290521,436921,452929,458329,474721,670761, %U A068888 690561,2143296,3470769,4145296,5230369,8503056,9078169,21058921,21836929,21874329,25230529 %N A068888 Squares with property that digits alternate in parity individually as well as in concatenation with previous terms. %Y A068888 Cf. A030152. %K A068888 base,nonn %O A068888 0,2 %A A068888 _Amarnath Murthy_, Mar 20 2002 %E A068888 Missing 81 and 452929 inserted, incorrect 93636 removed, and more terms from _Sean A. Irvine_, Mar 22 2024