OFFSET
1,3
MATHEMATICA
Join[{0, 1, 2}, Table[If[PrimeQ[n], IntegerLength[n]Ceiling[n/10], n], {n, 3, 99}]] (* Harvey P. Dale, Sep 14 2013 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Mohammad K. Azarian, Aug 21 2007
EXTENSIONS
Offset corrected by Mohammad K. Azarian, Nov 19 2008
STATUS
approved