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A060416 n*4^n-1. 1
1, 3, 31, 191, 1023, 5119, 24575, 114687, 524287, 2359295, 10485759, 46137343, 201326591, 872415231, 3758096383, 16106127359, 68719476735, 292057776127, 1236950581247, 5222680231935, 21990232555519, 92358976733183 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

LINKS

Harry J. Smith, Table of n, a(n) for n=0,...,200

Paul Leyland, Factors of Cullen and Woodall numbers

Paul Leyland, Generalized Cullen and Woodall numbers

PROG

(PARI) { for (n=0, 200, write("b060416.txt", n, " ", abs(n*4^n - 1)); ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jul 04 2009]

CROSSREFS

Sequence in context: A007233 A197892 A198009 * A060425 A203242 A121099

Adjacent sequences:  A060413 A060414 A060415 * A060417 A060418 A060419

KEYWORD

easy,nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Apr 05 2001

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Last modified February 17 16:13 EST 2012. Contains 206050 sequences.