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 A177137 #18 Jul 01 2021 19:32:12 %S A177137 1901,19001,198901,1909081,19986091,199800091,1999880101,19999919011, %T A177137 199999069901,1999998661891,19999999196861,199999990066801, %U A177137 1999999999899101,19999999999898161,199999999998806191,1999999999999988911,19999999999998191191,199999999999986661691 %N A177137 a(n) is the largest n-digit bemirp (A048895). %e A177137 a(7) = 1909081 is the last among 7-digit emirp pairs (1909081, 1809091) which rotated through 180 degrees forms another emirp pair (1806061, 1606081). %Y A177137 Cf. A048895, A177136. %K A177137 nonn,base %O A177137 4,1 %A A177137 _Lekraj Beedassy_, May 03 2010 %E A177137 More terms from _Giovanni Resta_, Aug 14 2019