OFFSET
0,3
COMMENTS
This sequence is strictly increasing.
LINKS
Rémy Sigrist, C++ program
EXAMPLE
A353709(1647) = 63 = 2^6 - 1, so a(6) = 1647.
PROG
(C++) See Links section.
CROSSREFS
KEYWORD
nonn,base,more
AUTHOR
Rémy Sigrist, May 15 2022
STATUS
approved