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 A018867 #11 Jan 29 2017 09:39:10 %S A018867 1,262144,32768,4096,512,64,73786976294838206464,8, %T A018867 9223372036854775808,1073741824,1152921504606846976, %U A018867 1237940039285380274899124224,134217728,144115188075855872,154742504910672534362390528,16777216 %N A018867 Smallest power of 8 that begins with n. %H A018867 Seiichi Manyama, <a href="/A018867/b018867.txt">Table of n, a(n) for n = 1..342</a> %F A018867 a(n) = 8^A018868(n). - _Seiichi Manyama_, Jan 29 2017 %F A018867 a(8^n) = 8^n for n >= 0. - _Seiichi Manyama_, Jan 29 2017 %Y A018867 Cf. A018802 (k=2), A018857 (k=3), A018859 (k=4), A018861 (k=5), A018863 (k=6), A018865 (k=7), this sequence (k=8), A018869 (k=9). %K A018867 nonn,base %O A018867 1,2 %A A018867 _David W. Wilson_