This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A034844 Primes with only nonprime decimal digits. 40
 11, 19, 41, 61, 89, 101, 109, 149, 181, 191, 199, 401, 409, 419, 449, 461, 491, 499, 601, 619, 641, 661, 691, 809, 811, 881, 911, 919, 941, 991, 1009, 1019, 1049, 1061, 1069, 1091, 1109, 1181, 1409, 1481, 1489, 1499, 1601, 1609, 1619, 1669, 1699, 1801 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS A109066(n) = 0 iff prime(n) is in this sequence. [Reinhard Zumkeller, Jul 11 2010, corrected by M. F. Hasler, Aug 27 2012] Or, primes p such that A193238(p) = 0. - M. F. Hasler, Aug 27 2012 Intersection of A084984 and A000040; complement of A179336 (within the primes A000040). [Reinhard Zumkeller, Jul 19 2011, edited by M. F. Hasler, Aug 27 2012] LINKS T. D. Noe, Table of n, a(n) for n = 1..1000 Chris Caldwell, The First 1,000 Primes FORMULA a(n) >> n^1.285. [Charles R Greathouse IV, Feb 20 2012] EXAMPLE E.g. 149 is a prime made of nonprime digits(1,4,9). 991 is a prime without any prime digits. MATHEMATICA Select[Prime[Range[279]], Intersection[IntegerDigits[#], {2, 3, 5, 7}] == {} &] (* Jayanta Basu, Apr 18 2013 *) Union[Select[Flatten[Table[FromDigits/@Tuples[{1, 4, 6, 8, 9, 0}, n], {n, 2, 4}]], PrimeQ]] (* Harvey P. Dale, Dec 08 2014 *) PROG (Haskell) a034844 n = a034844_list !! (n-1) a034844_list = filter (not . any  (`elem` "2357") . show ) a000040_list -- Reinhard Zumkeller, Jul 19 2011 (MAGMA) [p: p in PrimesUpTo(2000) | forall{d: d in [2, 3, 5, 7] | d notin Set(Intseq(p))}];  // Bruno Berselli, Jul 27 2011 (PARI) is_A034844(n)=isprime(n)&!apply(x->isprime(x), eval(Vec(Str(n)))) \\ M. F. Hasler, Aug 27 2012 (PARI) is_A034844(n)=isprime(n)&!setintersect(Set(Vec(Str(n))), Vec("2357")) \\ M. F. Hasler, Aug 27 2012 CROSSREFS Cf. A000040, A084984. Cf. A034844, A033274, A152313, A141409. Sequence in context: A081027 A322474 A084986 * A092627 A152313 A034303 Adjacent sequences:  A034841 A034842 A034843 * A034845 A034846 A034847 KEYWORD nonn,base AUTHOR EXTENSIONS Edited by N. J. A. Sloane, Feb 22 2009 at the suggestion of R. J. Mathar STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified October 22 14:44 EDT 2019. Contains 328318 sequences. (Running on oeis4.)