document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=495093>Question 495093</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1,4,7,10,13,16\r<BR>\n" );
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document.write( "what is the 200th number in this sequence\r<BR>\n" );
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document.write( "I am familiar with number theory, but I am stumped on finding a number that is not  an even or odd, like (2n) and (2n-1) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #336006 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=336006\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> What does this sequence have to do with even/odd? This is not really number theory either; number theory has to do with properties of numbers, mods, quadratic residues, primes, etc.\r<BR>\n" );
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document.write( "Just note that the sequence is arithmetic with a common difference of 3.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE a_n = 3n - 2\">\r<BR>\n" );
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document.write( "Hence, <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE a_{200} = 3(200)-2 = 598\"> </SPAN>\n" );
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