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 A143039 #4 Mar 31 2012 10:26:07 %S A143039 16,419,7517,103511,1295953,15474787,179390821,2037968761,22801415981, %T A143039 252096675073,2760723662941,29996212395727,323780470283789, %U A143039 3475385632514321,37124507635789309,394906912575042053,4185296577158764117,44211790220874464021 %N A143039 a(n) = m-th prime power (not counting 1), where m = 10^n. %D A143039 J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 455, pp 84, Ellipses, Paris 2008. %F A143039 a(n)=A000961(10^n + 1). %F A143039 A025528(a(n)) = 10^n. %Y A143039 Cf. A000961. %K A143039 nonn %O A143039 1,1 %A A143039 _Lekraj Beedassy_, Jul 18 2008 %E A143039 Edited and extended by _Max Alekseyev_, May 13 2009