OFFSET
0,2
PROG
(PARI) a(n) = vecsearch(setbinop((i, j)->3^i * 10^j, [0..n], [0..logint(10^n, 3)]), 3^n); \\ Michel Marcus, Jun 24 2023
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
Offset 0 from Michel Marcus, Jun 24 2023
STATUS
approved