OFFSET

1,6

COMMENTS

a(n) = A055223(n) if n>1.

LINKS

Antonio M. Oller-Marcen, José María Grau, On the base b expansion of the number of trailing zeros of b^k!, arXiv:1002.4175 [math.NT], 2010, and J. Int. Seq. 14 (2011) 11.6.8

CROSSREFS

KEYWORD

easy,nonn

AUTHOR

José María Grau Ribas, Mar 29 2010

STATUS

approved