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A074162 a(1) = 1; a(n) = smallest multiple of n (>n) using all nonprime digits (1,4,6,8,9 and 0) if n is a prime else using all prime digits and 1 if n is composite; or 0 if no such number exists. 0
1, 4, 6, 12, 10, 12, 14, 32, 27, 0, 44, 72, 91, 112, 75, 32, 68, 72, 114, 0, 231, 132, 46, 72, 75, 52, 135, 112, 116, 0, 186, 352, 132, 272, 175, 72, 111, 152, 117, 0, 164, 252, 86, 132, 135, 322, 94, 1152, 735, 0, 153, 312, 106, 1512, 275, 112, 171, 232, 118, 0, 488 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
a(10k) = 0. Are there other values of n such that a(n) =0?
A pigeonhole argument shows the conjecture to be true (that only a(10k) = 0). - Joshua Zucker, May 08 2006
LINKS
CROSSREFS
Sequence in context: A152678 A110758 A189765 * A365648 A038040 A143356
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Aug 29 2002
EXTENSIONS
Corrected and extended by Joshua Zucker, May 08 2006
STATUS
approved

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Last modified March 29 00:26 EDT 2024. Contains 371264 sequences. (Running on oeis4.)