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 A136381 #4 Mar 31 2012 14:02:29 %S A136381 30,240,27300,275332400,27624273321353000, %T A136381 277524424264553332245513535524000, %U A136381 27762724550512424245125524562733322130552452655353526564552130000,277751305605652455261312526532424241366545132655245452272135533332224427213254552451226545102753535225125262712455250570562640000 %N A136381 Sequence A136380 shown in octal base. %H A136381 A. Karttunen, <a href="/A136381/b136381.txt">Table of n, a(n) for n = 1..10</a> %H A136381 A. Karttunen, <a href="/A036284/a036284.c.txt">C program for computing this sequence</a> %F A136381 a(n) = A007094(A136380(n)). %Y A136381 Cf. A036285, A136383 (shifted two bits right), A136385. %K A136381 nonn,base %O A136381 1,1 %A A136381 _Antti Karttunen_, Dec 29 2007