document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=864898>Question 864898</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I would like to get an equation for the following table:<BR>\n" );
document.write( "Values are separated using (~)<BR>\n" );
document.write( "X     ~Y<BR>\n" );
document.write( "1     ~1<BR>\n" );
document.write( "2     ~3<BR>\n" );
document.write( "3     ~7<BR>\n" );
document.write( "4     ~15<BR>\n" );
document.write( "5     ~31<BR>\n" );
document.write( "6     ~63<BR>\n" );
document.write( "7     ~127<BR>\n" );
document.write( "8     ~255<BR>\n" );
document.write( "9     ~511<BR>\n" );
document.write( "10    ~1023<BR>\n" );
document.write( "I have been able to get an equation for the answers using previous answers, but I need an equation where I can put in a number (X) and get an answer (Y). Thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #521351 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=521351\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (1,1), <BR>\n" );
document.write( "(2,3),<BR>\n" );
document.write( "(3,7),<BR>\n" );
document.write( "(4,15),<BR>\n" );
document.write( "(5,31),<BR>\n" );
document.write( "(6,63),<BR>\n" );
document.write( "(7,127),<BR>\n" );
document.write( "(8,255),<BR>\n" );
document.write( "(9,511),<BR>\n" );
document.write( "(10,1023),<BR>\n" );
document.write( "y=(2^x)-1\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );