OFFSET
0,2
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..10000
EXAMPLE
a(24) = 25 because 11^24 = 9849732675807611094711841, which has 25 digits.
a(25) = 27 because 11^25 = 108347059433883722041830251, which has 27 digits.
MATHEMATICA
a[n_] := IntegerLength[11^n]; Array[a, 100, 0] (* Amiram Eldar, Oct 22 2021 *)
PROG
(PARI) a(n) = #Str(11^n);
(Python)
def a(n): return len(str(11**n))
print([a(n) for n in range(98)]) # Michael S. Branicky, Oct 22 2021
CROSSREFS
KEYWORD
nonn,easy,base
AUTHOR
Seiichi Manyama, Oct 22 2021
STATUS
approved