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Search: id:A013776
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A013776 2^(4n+1). +0
2
2, 32, 512, 8192, 131072, 2097152, 33554432, 536870912, 8589934592, 137438953472, 2199023255552, 35184372088832, 562949953421312, 9007199254740992, 144115188075855872, 2305843009213693952 (list; graph; listen)
OFFSET

0,1

LINKS

Tanya Khovanova, Recursive Sequences

FORMULA

a(n)=16*a(n-1), n>0 ; a(0)=2 . G.f.: 2/(1-16x). [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 23 2008]

CROSSREFS

Sequence in context: A115418 A163952 A022028 this_sequence A022019 A010045 A052151

Adjacent sequences: A013773 A013774 A013775 this_sequence A013777 A013778 A013779

KEYWORD

nonn

AUTHOR

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

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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.


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