OFFSET
0,2
COMMENTS
It would be nice to have a formula for a(n).
The data suggests that a(n) is growing very roughly like 2^n/3.261. - N. J. A. Sloane, Mar 29 2022
LINKS
Rémy Sigrist, C++ program for A305370
EXAMPLE
A109812(15) = 32 = 2^5, so a(5) = 15.
PROG
(C++) See Links section.
CROSSREFS
KEYWORD
nonn,more,base
AUTHOR
N. J. A. Sloane, Jun 02 2018
EXTENSIONS
a(14)-a(22) from Chai Wah Wu, Jun 04 2018
a(23)-a(24) from Giovanni Resta, Jun 06 2018
a(25)-a(26) from Rémy Sigrist, Dec 05 2021
a(27)-a(28) from Walter Trump, Apr 13 2022
a(29)-a(31) from Walter Trump, Apr 26 2022
STATUS
approved