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 A116174 #8 Jul 20 2021 23:47:25 %S A116174 1143,4382,4943,24941511,25058558,94090583,616729341438,638432642423, %T A116174 978717194478,994009005983,1636200161363007,1710661666314798, %U A116174 1805005185949007,1906479843038783,1986790648039982,3072104679280383 %N A116174 Numbers k such that k concatenated with k+2 gives the product of two numbers which differ by 8. %C A116174 Also numbers k such that k concatenated with k+9 gives the product of two numbers which differ by 6. %e A116174 94090583//94090585 = 97000297 * 97000305, where // denotes concatenation. %e A116174 94090583//94090592 = 97000298 * 97000304. %Y A116174 Cf. A116168, A116173, A116175, A116181, A116305. %Y A116174 Cf. A116180, A116169, A116352. %K A116174 nonn,base %O A116174 1,1 %A A116174 _Giovanni Resta_, Feb 06 2006 %E A116174 Edited by _N. J. A. Sloane_, Apr 13 2007