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Search: id:A107689
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| A107689 |
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Primes with digital product = 3. |
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+0
12
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| 3, 13, 31, 113, 131, 311, 11113, 11131, 11311, 113111, 131111, 311111, 11111131, 11111311, 11113111, 11131111, 111111113, 111111131, 111113111, 131111111, 11111111113, 11111111131, 11113111111, 11131111111, 31111111111
(list; graph; listen)
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OFFSET
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1,1
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MATHEMATICA
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Flatten[ Table[ Select[ Sort[ FromDigits /@ Permutations[ Flatten[{3, Table[1, {n}]}]]], PrimeQ[ # ] &], {n, 0, 12}]]
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CROSSREFS
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Cf. A004022, A107612, A107690, A107691, A107692, A107693, A107694, A107695, A107696, A107697, A107698.
Sequence in context: A146191 A058264 A034050 this_sequence A154834 A159047 A073337
Adjacent sequences: A107686 A107687 A107688 this_sequence A107690 A107691 A107692
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KEYWORD
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base,nonn
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AUTHOR
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Zak Seidov (zakseidov(AT)yahoo.com) and Robert G. Wilson v (rgwv(AT)rgwv.com), May 20 2005
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