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Search: id:A136260
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| A136260 |
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Primes which contain the digit 2 or the digit 3. |
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+0
1
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| 2, 3, 13, 23, 29, 31, 37, 43, 53, 73, 83, 103, 113, 127, 131, 137, 139, 163, 173, 193, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 421, 431, 433
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Chris Caldwell, The First 1000 primes.
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MAPLE
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a:=proc(n) local nn: nn:=convert(convert(n, base, 10), set): if isprime(n)=true and 0 < nops(`intersect`({2, 3}, nn)) then n else end if end proc: seq(a(n), n= 1..400); - Emeric Deutsch (deutsch(AT)duke.poly.edu), Mar 31 2008
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MATHEMATICA
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fQ[n_] := Block[{id = IntegerDigits@ n}, MemberQ[id, 2] || MemberQ[id, 3]]; Select[ Prime@ Range@ 84, fQ@ # &] (* Robert G. Wilson v, (rgwv@rgwv.com), Apr 19 2008 *)
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CROSSREFS
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Cf. A137238, A133765.
Adjacent sequences: A136257 A136258 A136259 this_sequence A136261 A136262 A136263
Sequence in context: A138699 A077248 A137248 this_sequence A133201 A103150 A065723
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KEYWORD
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nonn,base,easy
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AUTHOR
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Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Mar 17 2008
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EXTENSIONS
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Corrected and extended by Emeric Deutsch (deutsch(AT)duke.poly.edu), Mar 31 2008
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