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A078235 a(1) = 7, a(n+1) = smallest multiple of a(n) using only prime digits(2,3,5,7). 3
7, 35, 525, 5775, 225225, 27252225, 73553755275, 52377555577572225, 755322332227355227335375375 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Sequence is infinite - see Comments in A078233. - Fung Cheok Yin (cheokyin_restart(AT)yahoo.com.hk), Sep 02 2006
LINKS
CROSSREFS
Sequence in context: A165639 A073109 A231511 * A364454 A197555 A362162
KEYWORD
base,more,nonn
AUTHOR
Amarnath Murthy, Nov 23 2002
EXTENSIONS
More terms from Sascha Kurz, Jan 06 2003
a(8) from Ray G. Opao, Mar 30 2005
a(9) from Robert Gerbicz, May 09 2008
STATUS
approved

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)