document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=452276>Question 452276</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how to solve this series of numbers with formula?<BR>\n" );
document.write( "81,27,9, , <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #310931 by </B><A HREF=/tutors/aboutme.mpl?userid=htmentor><B>htmentor(1343)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=htmentor><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=htmentor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=310931\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> This is a geometric series with common ratio = 27/81 = 1/3<BR>\n" );
document.write( "So the nth term in the series can be written as<BR>\n" );
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