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Search: id:A097658
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| 0, 9, 24, 45, 72, 105, 144, 189, 240, 297, 360, 429, 504, 585, 672, 765, 864, 969, 1080, 1197, 1320, 1449, 1584, 1725, 1872, 2025, 2184, 2349, 2520, 2697, 2880, 3069, 3264, 3465, 3672, 3885, 4104, 4329, 4560, 4797
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OFFSET
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0,2
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COMMENT
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a(n)=3*A005563 - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Mar 06 2007
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FORMULA
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n*((n+1)+(n+2)+(n+3)) - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 24 2006
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MAPLE
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[seq(n*((n+1)+(n+2)+(n+3)), n=0..39)]; - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 24 2006
a:=n->sum(sum(3, j=2..n), k=0..n): seq(a(n), n=1..40); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 30 2007
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CROSSREFS
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Cf. A005563.
Sequence in context: A003343 A047720 A063066 this_sequence A067725 A001106 A023551
Adjacent sequences: A097655 A097656 A097657 this_sequence A097659 A097660 A097661
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KEYWORD
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nonn
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AUTHOR
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Alex Healy (blink2826(AT)aol.com), Tj Tullo, Avery Pickford, Sep 20 2004
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EXTENSIONS
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More terms from Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 24 2006
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