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A104008
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Area of (m,m+1,m+1)-integer triangle for m in A103975.
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1
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120, 25080, 4890480, 949077360, 184120982760, 35718589344360, 6929223155685600, 1344233586759971040, 260774386791383159640, 50588886806491889178840, 9813983266108156439587920, 1903862164738670605583434320, 369339445976042880280120411080
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..13.
Index to sequences with linear recurrences with constant coefficients, signature (208,-2718,208,-1).
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FORMULA
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a(n) = (m/4)*sqrt((3*m+2)*(m+2)), where m=A103975(n).
G.f.: 120*x*(x+1) / ((x^2-194*x+1)*(x^2-14*x+1)). - Colin Barker, Apr 10 2013
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CROSSREFS
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Cf. A103975.
Sequence in context: A151985 A105188 A151604 * A054778 A027493 A145407
Adjacent sequences: A104005 A104006 A104007 * A104009 A104010 A104011
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KEYWORD
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nonn,easy
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AUTHOR
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Zak Seidov, Feb 24 2005
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EXTENSIONS
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More terms from Max Alekseyev, May 31 2007
More terms from Colin Barker, Apr 10 2013
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STATUS
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approved
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