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 A116282 #9 Jul 18 2021 02:56:41 %S A116282 7744,8018,33294315,66705680,98000198,340465755422,476452552742, %T A116282 523547447253,659534244573,866013200678,998000001998,3695104677080131, %U A116282 3755782995538765,4198081170077528,4803478892324963,5196521107675032 %N A116282 Numbers k such that k*(k+6) gives the concatenation of two numbers m and m-1. %e A116282 98000198 * 98000204 = 96040393//96040392, where // denotes concatenation. %Y A116282 Cf. A115429, A116262, A116281, A116283, A116290. %K A116282 nonn,base %O A116282 1,1 %A A116282 _Giovanni Resta_, Feb 06 2006