The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A140529 a(n) = 6*4^n - 1. 5
 5, 23, 95, 383, 1535, 6143, 24575, 98303, 393215, 1572863, 6291455, 25165823, 100663295, 402653183, 1610612735, 6442450943, 25769803775, 103079215103, 412316860415, 1649267441663, 6597069766655, 26388279066623, 105553116266495 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..1000 FORMULA a(n) = 4*a(n-1) + 3, a(0)=5. Also A002023(n) - 1 or A000302(n+1) + A083420(n). PROG (MAGMA) [6*4^n-1: n in [0..30]]; // Vincenzo Librandi, Aug 08 2011 CROSSREFS Cf. A028894. Sequence in context: A146013 A028894 A254824 * A055489 A109765 A323922 Adjacent sequences:  A140526 A140527 A140528 * A140530 A140531 A140532 KEYWORD nonn,easy AUTHOR Paul Curtz, Jul 03 2008 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified May 26 09:37 EDT 2020. Contains 334620 sequences. (Running on oeis4.)