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A139300 2^(2p - 1)/8, where p is a Mersenne prime A000668(n). 3
4, 1024, 288230376151711744 (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)/8 = A139294(n)/8.

CROSSREFS

Sequence in context: A069920 A217024 A013780 * A004804 A221228 A159859

Adjacent sequences:  A139297 A139298 A139299 * A139301 A139302 A139303

KEYWORD

bref,nonn

AUTHOR

Omar E. Pol, Apr 13 2008

STATUS

approved

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Last modified March 21 10:09 EDT 2019. Contains 321368 sequences. (Running on oeis4.)