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A141083 2^(p(n)-2)*(2^p(n)-2), where p(n)=n-th prime. 0
2, 12, 240, 4032, 1047552, 16773120, 4294901760, 68719214592, 17592181850112, 72057593769492480, 1152921503533105152, 4722366482800925736960, 1208925819613529663078400, 19342813113829668748787712 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..14.

EXAMPLE

If n=1, then a(1)=2^(p(1)-2)*(2^p(1)-2)=2^(2-2)*(2^2-2)=2^0*(4-2)=1*2=2.

If n=2, then a(2)=2^(p(2)-2)*(2^p(2)-2)=2^(3-2)*(2^3-2)=2^1*(8-2)=2*6=12, etc.

MATHEMATICA

Table[2^(n-2) (2^n-2), {n, Prime[Range[20]]}] (* Harvey P. Dale, Aug 19 2014 *)

CROSSREFS

Sequence in context: A296462 A125804 A119700 * A257665 A132877 A007685

Adjacent sequences:  A141080 A141081 A141082 * A141084 A141085 A141086

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov, Aug 05 2008

EXTENSIONS

Corrected and extended by D. S. McNeil, Mar 21 2009

STATUS

approved

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Last modified August 15 12:59 EDT 2020. Contains 336502 sequences. (Running on oeis4.)