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A140969
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Prime numbers whose hexadecimal representation uses only the digits A,B,C,D,E,F (and not the decimal digits).
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1
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11, 13, 173, 191, 223, 239, 251, 2731, 2749, 2767, 2797, 3019, 3023, 3037, 3067, 3259, 3307, 3323, 3499, 3517, 3533, 3547, 3581, 3583, 3803, 3821, 3823, 4013, 4027, 4079, 4091, 4093, 43691, 43711, 43759, 43951, 43963, 43997, 44027, 44029, 44203, 44207
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Charles R Greathouse IV (charles.greathouse(AT)case.edu), Nov 16 2009, Table of n, a(n) for n = 1..10000
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EXAMPLE
| 11=B 13=D 113=AD 131=BB
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PROG
| Contribution from Michael Porter (michael_b_porter(AT)yahoo.com), Dec 01 2009: (Start)
(PARI) mindigit(n, b) = if(n<b, n, min(mindigit(floor(n/b), b), n%b))
isA140969(n) = (isprime(n) && mindigit(n, 16) > 9) (End)
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CROSSREFS
| Sequence in context: A094621 A178426 A144375 * A064759 A093605 A155967
Adjacent sequences: A140966 A140967 A140968 * A140970 A140971 A140972
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KEYWORD
| base,nonn
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AUTHOR
| Gil Broussard (gilbroussard(AT)bellsouth.net), Jul 27 2008
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EXTENSIONS
| Edited by N. J. A. Sloane, Nov 15 2009
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