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 A116326 #6 Jul 16 2021 21:31:53 %S A116326 8601,9423,35441,64553,73644,4851412,5148582,8784946,726216462985, %T A116326 753613723259,791909893642,819307153916,3654754464602947513, %U A116326 4527063717215234299,5472936282784765695,6345245535397052481 %N A116326 Numbers k such that k*(k+7) gives the concatenation of two numbers m and m+5. %e A116326 8784946 * 8784953 = 7717533//7717538, where // denotes concatenation. %Y A116326 Cf. A116195, A116319, A116325, A116327, A116332. %K A116326 nonn,base %O A116326 1,1 %A A116326 _Giovanni Resta_, Feb 06 2006