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Search: id:A005367
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A005367 2*(2^n + 1)*(2^(n+1) - 1). +0
7
4, 18, 70, 270, 1054, 4158, 16510, 65790, 262654, 1049598, 4196350, 16781310, 67117054, 268451838, 1073774590, 4295032830, 17180000254, 68719738878, 274878431230, 1099512676350, 4398048608254, 17592190238718 (list; graph; listen)
OFFSET

0,1

CROSSREFS

Sequence in context: A083321 A022728 A115112 this_sequence A050184 A034352 A159715

Adjacent sequences: A005364 A005365 A005366 this_sequence A005368 A005369 A005370

KEYWORD

nonn

AUTHOR

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

EXTENSIONS

An incorrect g.f. was deleted by N. J. A. Sloane (njas(AT)research.att.com), Sep 20 2008

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.


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