document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=800571>Question 800571</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what's the formula for this sequence 1, -2, 3, -4, 5, -6, 7, -8, 9, -10,... </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #483480 by </B><A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><B>Edwin McCravy(20056)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Edwin+McCravy><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=Edwin+McCravy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=483480\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (-1)<sup>n+1</sup>·n </SPAN>\n" );
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