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A259086
a(n) = largest k such that the decimal representation of prime(n)^k does not contain the digit 2.
3
168, 59, 1, 28, 38, 25, 16, 22, 28, 20, 22, 7, 19, 20, 4, 10, 27, 11, 8, 13, 13, 12, 5, 23, 23, 18, 42, 7, 31, 4, 10, 13, 11, 5, 11, 11, 8, 12, 12, 9, 7, 10, 10, 4, 7, 10, 3, 18, 7, 0, 8, 3, 6, 2, 8, 4, 12, 5, 4, 5, 6, 4, 8, 16, 2, 3, 5, 2, 7, 11, 12, 1, 5, 9
OFFSET
1,1
COMMENTS
These values are only conjectural.
LINKS
Popular Computing (Calabasas, CA), Two Tables, Vol. 1, (No. 9, Dec 1973), page PC9-16.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Jun 18 2015
EXTENSIONS
a(14)-a(74) from Hiroaki Yamanouchi, Jun 19 2015
STATUS
approved