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A051157 a(n) = (2^p^3 - 1)/(2^p^2 - 1) where p = n-th prime. 3
17, 262657, 1267650638007162390353805312001, 31828687130226401637050536789795514059715404495050094614691019248562308626412218127220737 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

CROSSREFS

Cf. A051154, A051155, A051156.

Sequence in context: A269442 A203677 A099499 * A177918 A297488 A177816

Adjacent sequences:  A051154 A051155 A051156 * A051158 A051159 A051160

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified April 18 15:04 EDT 2021. Contains 343089 sequences. (Running on oeis4.)