A139303 (2^(2p - 1)/16)-1, where p is a Mersenne prime A000668(n).

1, 511, 144115188075855871

Offset

1,2

Links

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

Formula

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

Crossrefs

Sequence in context: A069436 A217915 A263167 * A354537 A035884 A035596

Adjacent sequences: A139300 A139301 A139302 * A139304 A139305 A139306

Keyword

bref,nonn

Author

Omar E. Pol, Apr 13 2008

Status

approved