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Search: id:A083575
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A083575 a(n) = 2*a(n-1) - 1. +0
1
6, 11, 21, 41, 81, 161, 321, 641, 1281, 2561, 5121, 10241, 20481, 40961, 81921, 163841, 327681, 655361, 1310721, 2621441, 5242881, 10485761, 20971521, 41943041, 83886081, 167772161, 335544321, 671088641, 1342177281, 2684354561, 5368709121, 10737418241 (list; graph; listen)
OFFSET

0,1

MATHEMATICA

a=11; lst={6, 11}; k=10; Do[a+=k; AppendTo[lst, a]; k+=k, {n, 0, 5!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Dec 17 2008]

CROSSREFS

Sequence in context: A021011 A000382 A000383 this_sequence A046616 A155449 A063629

Adjacent sequences: A083572 A083573 A083574 this_sequence A083576 A083577 A083578

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Jun 15 2003

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.


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