document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=714515>Question 714515</A>: <I><SPAN STYLE=\"word-break: break-all;\"> find the formula of tn for 3,6,12,24,48,96<BR>\n" );
document.write( "thanks,<BR>\n" );
document.write( "victor </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #438841 by </B><A HREF=/tutors/aboutme.mpl?userid=Simnepi><B>Simnepi(216)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Simnepi><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=Simnepi><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=438841\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hello Victor!<BR>\n" );
document.write( "let us look at your sequence 3, 6, 12, etc.<BR>\n" );
document.write( "each term has the common factor of 3 i.e. we have the sequence<BR>\n" );
document.write( "3*1, 3*2, 3*4, 3*8, 3*16, 3*32....<BR>\n" );
document.write( "ignoring the 3's for a moment, the sequence is<BR>\n" );
document.write( "1, 2, 4, 8, 16, 32...<BR>\n" );
document.write( "these are all powers of two<BR>\n" );
document.write( "i.e. <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%5E0=1 ALIGN=MIDDLE  ALT=\"2%5E0=1\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%5E1=2 ALIGN=MIDDLE  ALT=\"2%5E1=2\"   DISABLED_style= \"max-width:90%; height:auto;\" > <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2%5E2=4 ALIGN=MIDDLE  ALT=\"2%5E2=4\"   DISABLED_style= \"max-width:90%; height:auto;\" >etc <BR>\n" );
document.write( "The powers of 2 are 1 less than the position of the number in the sequence <BR>\n" );
document.write( "so we can now say <BR>\n" );
document.write( "the sequence is<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2A2%5E%28n-1%29 ALIGN=MIDDLE  ALT=\"3%2A2%5E%28n-1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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