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 A115774 #5 Mar 31 2012 13:21:10 %S A115774 0,5,10,20,21,40,42,80,84,85,160,168,170,320,336,340,341,640,645,672, %T A115774 680,682,1280,1285,1290,1344,1360,1364,1365,2560,2565,2570,2580,2581, %U A115774 2688,2693,2720,2728,2730,5120,5125,5130,5140,5141,5160,5162,5376 %N A115774 Integers i such that 15*i = A048720bi(23,i). %C A115774 Here * stands for ordinary multiplication and A048720 is the carryless (GF(2)[X]) multiplication. %H A115774 <a href="/index/Con#CongruCrossDomain">Index entries for sequences defined by congruent products between domains N and GF(2)[X]</a> %Y A115774 Cf. A048717, A115767, A115770. Subset of A115772 ? A115776 gives the terms of A115772 which do not occur here. Differs from A062052 for the first time at n=18, where A115774(18)=645 while A062052(18)=672. A115775 shows this sequence in binary. %K A115774 nonn %O A115774 0,2 %A A115774 _Antti Karttunen_, Jan 30 2006