OFFSET
1,1
EXAMPLE
a(2)=10 since 10th Fibonacci number i.e. 55 contains exactly two 5's.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Shyam Sunder Gupta, Jul 14 2002
EXTENSIONS
a(21)-a(49) from Alois P. Heinz, Apr 26 2017
STATUS
approved