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A139302 2^(2p - 1)/16, where p is a Mersenne prime A000668(n). 3
2, 512, 144115188075855872 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..3.

FORMULA

a(n) = 2^(2*A000668(n)-1)/16 = A139294(n)/16.

CROSSREFS

Sequence in context: A109111 A004886 A234606 * A003391 A196290 A182446

Adjacent sequences:  A139299 A139300 A139301 * A139303 A139304 A139305

KEYWORD

bref,nonn

AUTHOR

Omar E. Pol, Apr 13 2008

STATUS

approved

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Last modified November 23 17:19 EST 2014. Contains 249851 sequences.