document.write( "Question 736986: What is the next number in the series: 9,73,241,561,1081,1849,... \n" ); document.write( "
Algebra.Com's Answer #450147 by MathLover1(20850)\"\" \"About 
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general formula is:\r
\n" ); document.write( "\n" ); document.write( "\"a%5Bn%5D=8n%5E3%2B4n%5E2-4n%2B1\"\r
\n" ); document.write( "\n" ); document.write( "check if it works with first two terms:\r
\n" ); document.write( "\n" ); document.write( "\"a%5B1%5D=8%2A1%5E3%2B4%2A1%5E2-4%2A1%2B1\"
\n" ); document.write( "\"a%5B1%5D=8%2B4-4%2B1\"
\n" ); document.write( "\"a%5B1%5D=13-4\"
\n" ); document.write( "\"a%5B1%5D=9\"\r
\n" ); document.write( "\n" ); document.write( "\"a%5B2%5D=8%2A2%5E3%2B4%2A2%5E2-4%2A2%2B1\"
\n" ); document.write( "\"a%5B1%5D=8%2A8%2B4%2A4-4%2A2%2B1\"
\n" ); document.write( "\"a%5B2%5D=64%2B16-8%2B1\"
\n" ); document.write( "\"a%5B2%5D=81-8\"
\n" ); document.write( "\"a%5B2%5D=73\"\r
\n" ); document.write( "\n" ); document.write( "so, next term in \"a%5B1%5D=9\",\"a%5B2%5D=73\", \"a%5B3%5D=241\",\"a%5B4%5D=561\",\"a%5B5%5D=1081\", \"a%5B6%5D=1849\", that we are looking for is \"a%5B7%5D\"\r
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\n" ); document.write( "\n" ); document.write( "\"a%5B7%5D=8%2A7%5E3%2B4%2A7%5E2-4%2A7%2B1\"\r
\n" ); document.write( "\n" ); document.write( "\"a%5B7%5D=2744%2B196-28%2B1\"\r
\n" ); document.write( "\n" ); document.write( "\"a%5B7%5D=2913\"\r
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