OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..17
MATHEMATICA
Map[FromDigits[IntegerDigits[2^# - 1, 8]] &, MersennePrimeExponent[Range[12]]] (* Amiram Eldar, Oct 22 2024 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Vladislav-Stepan Malakhovsky & Juri-Stepan Gerasimov, Jun 16 2009
EXTENSIONS
a(6) and a(10) corrected by R. J. Mathar, Aug 03 2009
STATUS
approved