The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A139300

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2^(2p - 1)/8, where p is a Mersenne prime A000668(n).
(history; published version)

#4 by Russ Cox at Fri Mar 30 17:33:55 EDT 2012

AUTHOR

_Omar E. Pol (info(AT)polprimos.com), _, Apr 13 2008

Discussion

Fri Mar 30

17:33

OEIS Server: https://oeis.org/edit/global/157

#3 by Charles R Greathouse IV at Mon Mar 14 10:55:37 EDT 2011

STATUS

proposed

approved

#2 by Charles R Greathouse IV at Mon Mar 14 10:55:36 EDT 2011

CROSSREFS

KEYWORD

bref,more,nonn

STATUS

approved

proposed

#1 by N. J. A. Sloane at Sun Jun 29 03:00:00 EDT 2008

NAME

2^(2p - 1)/8, where p is a Mersenne prime A000668(n).

DATA

4, 1024, 288230376151711744

OFFSET

1,1

FORMULA

a(n) = 2^(2*A000668(n)-1)/8 = A139294(n)/8.

CROSSREFS

KEYWORD

bref,more,nonn

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Apr 13 2008

STATUS

approved