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Search: id:A013723
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A013723 18^(2n+1). +0
1
18, 5832, 1889568, 612220032, 198359290368, 64268410079232, 20822964865671168, 6746640616477458432, 2185911559738696531968, 708235345355337676357632, 229468251895129407139872768 (list; graph; listen)
OFFSET

0,1

LINKS

Tanya Khovanova, Recursive Sequences

FORMULA

a(n)=324*a(n-1), n>0 ; a(0)=18 . G.f.: 18/(1-324*x). [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 28 2008]

CROSSREFS

Sequence in context: A008994 A036214 A058976 this_sequence A159405 A060617 A153301

Adjacent sequences: A013720 A013721 A013722 this_sequence A013724 A013725 A013726

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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