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Search: id:A083583
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A083583 (8*3^n-5*(0)^n)/3. +0
2
1, 8, 24, 72, 216, 648, 1944, 5832, 17496, 52488, 157464, 472392, 1417176, 4251528, 12754584, 38263752, 114791256, 344373768, 1033121304, 3099363912, 9298091736, 27894275208, 83682825624, 251048476872, 753145430616, 2259436291848 (list; graph; listen)
OFFSET

0,2

FORMULA

a(n)=(8*3^n-5*(0)^n)/3 G.f. (1+5x)/(1-3x) E.g.f. (8exp(3x)-5exp(0))/3

a(n)=A005051(n-1), n>0. [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 17 2008]

CROSSREFS

Cf. A083854.

Sequence in context: A111071 A090336 A005051 this_sequence A078158 A116486 A141317

Adjacent sequences: A083580 A083581 A083582 this_sequence A083584 A083585 A083586

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), May 01 2003

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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