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A139298
a(n) = 2^(2p - 1)/4, where p is the n-th Mersenne prime
A000668
(n).
4
8, 2048, 576460752303423488, 3618502788666131106986593281521497120414687020801267626233049500247285301248
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..4.
FORMULA
a(n) = 2^(2*
A000668
(n) - 1)/4 =
A139294
(n)/4.
CROSSREFS
Sequence in context:
A299306
A299464
A300107
*
A004819
A001375
A281651
Adjacent sequences:
A139295
A139296
A139297
*
A139299
A139300
A139301
KEYWORD
nonn
AUTHOR
Omar E. Pol
, Apr 13 2008
STATUS
approved
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Last modified September 9 12:29 EDT 2024. Contains 375764 sequences. (Running on oeis4.)