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A078234 a(1) = 5, a(n+1) = smallest multiple of a(n) using only prime digits(2,3,5,7). 3
5, 25, 75, 225, 3375, 57375, 2352375, 322275375, 27757255773375, 23322552325375373733375 (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

Table of n, a(n) for n=1..10.

CROSSREFS

Cf. A078232, A078233, A078235, A078236.

Sequence in context: A059302 A147130 A154286 * A056374 A301912 A171272

Adjacent sequences:  A078231 A078232 A078233 * A078235 A078236 A078237

KEYWORD

base,more,nonn

AUTHOR

Amarnath Murthy, Nov 23 2002

EXTENSIONS

More terms from Sascha Kurz, Jan 06 2003

a(10) from Robert Gerbicz, May 09 2008

STATUS

approved

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Last modified May 26 02:35 EDT 2019. Contains 323579 sequences. (Running on oeis4.)