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A181582
Smallest prime p such that p! ends with exactly 10^n trailing 0's (or 0, if no such p exists).
0
5, 47, 409, 4007, 40013, 400009, 0, 0, 0, 4000000019, 0, 400000000019, 0, 0, 0, 0, 0, 0, 0, 40000000000000000019, 0, 0, 0, 0, 4000000000000000000000039, 0, 0, 0, 0, 0, 0, 0, 0, 0, 40000000000000000000000000000000037, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 400000000000000000000000000000000000000000000000057
OFFSET
0,1
LINKS
A. M. Oller-Marcen, J. Maria Grau, On the Base-b Expansion of the Number of Trailing Zeros of b^k!, J. Int. Seq. 14 (2011) 11.6.8
FORMULA
a(n)=0 or a(n)>4*10^n
CROSSREFS
Sequence in context: A353545 A198854 A200814 * A220558 A241372 A124267
KEYWORD
nonn,base
AUTHOR
Lekraj Beedassy, Nov 02 2010
EXTENSIONS
More terms from Robert Gerbicz, Nov 21 2010
STATUS
approved