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Search: id:A089985
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A089985 a(n)=A089709(n+1)/A089709(n). +0
3
2, 3, 6, 10, 18, 34, 66, 130, 258, 514, 1026, 2050, 4098, 8194, 16386, 32770, 65538, 131074, 262146, 524290, 1048578, 2097154, 4194306, 8388610, 16777218, 33554434, 67108866, 134217730, 268435458, 536870914, 1073741826, 2147483650 (list; graph; listen)
OFFSET

1,1

FORMULA

a(n)=2^(n-1)+2, n>2.

CROSSREFS

Cf. A089709.

Essentially the same as A056469.

Sequence in context: A018166 A144026 A054152 this_sequence A007473 A014595 A079959

Adjacent sequences: A089982 A089983 A089984 this_sequence A089986 A089987 A089988

KEYWORD

nonn

AUTHOR

Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 21 2003

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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