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A139305 (2^(2p - 1)/32)-1, where p=A000668(n) is n-th Mersenne prime. 2
0, 255, 72057594037927935, 452312848583266388373324160190187140051835877600158453279131187530910662655 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Next term is too large to list here.

LINKS

Table of n, a(n) for n=1..4.

FORMULA

a(n) = (2^(2*A000668(n)-1)/32)-1 = (A139294(n)/32)-1.

CROSSREFS

Cf. A000668, A139286, A139294, A139295, A139296, A139297, A139298, A139299, A139300, A139301, A139302, A139303, A139304, A139306.

Sequence in context: A212933 A270876 A263166 * A160514 A203813 A133487

Adjacent sequences:  A139302 A139303 A139304 * A139306 A139307 A139308

KEYWORD

nonn

AUTHOR

Omar E. Pol, Apr 13 2008

EXTENSIONS

Edited by Max Alekseyev, Apr 23 2010

STATUS

approved

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Last modified October 19 16:17 EDT 2019. Contains 328223 sequences. (Running on oeis4.)