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 A115446 #9 Jul 15 2021 06:25:45 %S A115446 4623,5378,7981,34953,46866,53135,65048,7056187,9783460,43176671, %T A115446 56823330,97999801,447255476453,552744523548,755424659535, %U A115446 799319866014,997999998001,4297663349524,5702336650477,6971253996228,7574200549228,8843117894979,3505613322543666,3757750389995601,3948262973033353 %N A115446 Numbers k such that the square of k is the concatenation of two numbers m and m-8. %H A115446 David A. Corneth, <a href="/A115446/b115446.txt">Table of n, a(n) for n = 1..1730</a> %e A115446 18642249_18642241 = 43176671^2. %Y A115446 Cf. A030467, A106497, A115435, A115427, A115438, A115439, A115440, A115441, A115442, A115443, A115444, A115445, A115447. %K A115446 base,nonn %O A115446 1,1 %A A115446 _Giovanni Resta_, Jan 25 2006 %E A115446 More terms from _David A. Corneth_, Jan 02 2021