OFFSET
0,2
MATHEMATICA
Ceiling[Surd[10, 5]^Range[0, 40]] (* Harvey P. Dale, Dec 30 2017 *)
PROG
(PARI) a(n) = sqrtnint(10^n-1, 5) + 1; \\ Michel Marcus, Jun 26 2024
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved