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 A143329 Primes in A143292. 1
 3, 2, 7, 11, 19, 61, 47, 109, 73, 223, 211, 251, 239, 167, 151, 157, 137, 439, 421, 419, 499, 463, 331, 787, 827, 971, 991, 1009, 947, 911, 641, 647, 659, 701, 757, 613, 569, 521, 1549, 1663, 1747, 1789, 1697, 1667, 1933, 1951, 1877, 1291, 1367, 1531, 1447, 1451 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Primes that are Gray codes of other "source" primes, ordered along increasing source primes, i.e., in the order of appearance in A143292. LINKS Charles R Greathouse IV, Table of n, a(n) for n = 1..10000 Kevin Ryde, A143329 gray code primes sample values, SeqFan Mailing list Apr 19 2012 MATHEMATICA GrayCode[n_] := BitXor[n, Floor[n/2]]; Select[ GrayCode@ Prime@ Range@ 275, PrimeQ] (* Robert G. Wilson v, Mar 11 2015 *) PROG (MAGMA) I2B:=func; B2I:=func; [g: n in [1..999] | IsPrime(g) where g is B2I(Xor(I2B(i), I2B(i div 2)cat[false])) where i is NthPrime(n)]; // Jason Kimberley, Apr 19 2012 (PARI) forprime(p=2, 3e6, if(isprime(t=bitxor(p, p>>1)), print1(t", "))) \\ Charles R Greathouse IV, Apr 19 2012 CROSSREFS Sequence in context: A099329 A182871 A219187 * A053440 A143332 A255919 Adjacent sequences:  A143326 A143327 A143328 * A143330 A143331 A143332 KEYWORD nonn,easy AUTHOR Roger L. Bagula and Gary W. Adamson, Oct 21 2008 EXTENSIONS Jason Kimberley corrected all terms after a(38) at the suggestion of Kevin Ryde, Apr 19 2012 STATUS approved

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