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 A116105 #6 Jul 21 2021 22:46:33 %S A116105 5303944,6677714,2070936216988528558,2969428172738875624, %T A116105 6685545813563350444,8013829604553736451395958429212, %U A116105 9724110515510343256451213152382 %N A116105 Numbers k such that k concatenated with k-8 gives the product of two numbers which differ by 5. %Y A116105 Cf. A116097, A116104, A116106, A116118, A116236. %K A116105 nonn,base %O A116105 1,1 %A A116105 _Giovanni Resta_, Feb 06 2006