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 A061477 #5 Dec 05 2013 19:54:51
%S A061477 8,80,91,107,118,129,206,217,228,239,305,316,327,338,349,404,415,426,
%T A061477 437,448,459,503,514,525,536,547,558,569,602,613,624,635,646,657,668,
%U A061477 679,701,712,723,734,745,756,767,778,789,800,811,822,833,844,855,866
%N A061477 First (leftmost) digit - second digit + third digit - fourth digit .... = 8.
%H A061477 Harvey P. Dale, <a href="/A061477/b061477.txt">Table of n, a(n) for n = 1..1000</a>
%t A061477 Select[Range[1000],Total[Times@@@Partition[Riffle[IntegerDigits[#],{1,-1},{2,-1,2}],2]]==8&] (* _Harvey P. Dale_, Oct 11 2012 *)
%Y A061477 Cf. A008593, A060978-A060980, A060982, A061470-A061479, A061870-A061882.
%K A061477 nonn,base,easy
%O A061477 1,1
%A A061477 _Amarnath Murthy_, May 05 2001
%E A061477 More terms from _Robert G. Wilson v_, May 10 2001 and from Larry Reeves (larryr(AT)acm.org), May 15 2001