A139305 (2^(2p - 1)/32)-1, where p=A000668(n) is n-th Mersenne prime.

0, 255, 72057594037927935, 452312848583266388373324160190187140051835877600158453279131187530910662655

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 * A348431 A351248 A160514

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