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A107715
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Primes whose decimal representation contains only digits from the set {0,1,2,3}.
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7
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2, 3, 11, 13, 23, 31, 101, 103, 113, 131, 211, 223, 233, 311, 313, 331, 1013, 1021, 1031, 1033, 1103, 1123, 1201, 1213, 1223, 1231, 1301, 1303, 1321, 2003, 2011, 2111, 2113, 2131, 2203, 2213, 2221, 2311, 2333, 3001, 3011, 3023, 3121, 3203, 3221, 3301, 3313
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Select[Prime[Range[500]], Max[IntegerDigits[#]]<4&] (* Harvey P. Dale, May 09 2012 *)
Select[FromDigits/@Tuples[{0, 1, 2, 3}, 4], PrimeQ] (* Harvey P. Dale, Mar 06 2016 *)
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PROG
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(Haskell)
a107715 n = a107715_list !! (n-1)
a107715_list = filter ((== 1) . a010051) a007090_list
(Python) from gmpy2 import digits
from sympy import isprime
[int(digits(n, 4)) for n in range(1000) if isprime(int(digits(n, 4)))] # Chai Wah Wu, Jul 31 2014
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CROSSREFS
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Cf. A036953 (primes containing digits from set {0, 1, 2}).
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KEYWORD
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base,nonn
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AUTHOR
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STATUS
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approved
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