document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=292465>Question 292465</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if the sequences starts out 1, 4, 8, 13, 19 what is the 450th number in the sequence I know that from the first to the second number is 3 then four to eight is four and it increases by one more every number but dont know how to find the 450th number </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #211252 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=211252\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a=1/2(n^2+3*n-2)<BR>\n" );
document.write( "a= 1/2*(450^2+3*450-2)<BR>\n" );
document.write( "a = 101924 </SPAN>\n" );
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