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A129543
Gray code ordering of the prime numbers.
1
2, 3, 7, 5, 17, 19, 13, 11, 41, 43, 53, 47, 31, 37, 29, 23, 97, 101, 107, 103, 127, 131, 113, 109, 73, 79, 89, 83, 67, 71, 61, 59, 227, 229, 239, 233, 257, 263, 251, 241, 283, 293, 311, 307, 277, 281, 271, 269, 179, 181, 193, 191, 211, 223, 199, 197, 157, 163, 173
OFFSET
0,1
COMMENTS
This sequence is obtained by permuting the indices of the prime numbers by the Gray code ordering of the integers.
FORMULA
a(n) = A000040(1+A003188(n)).
PROG
(PARI) a(n) = prime(1 + bitxor(n, n>>1)); \\ Michel Marcus, Apr 23 2013
CROSSREFS
Sequence in context: A083188 A370094 A228775 * A137440 A294639 A038026
KEYWORD
nonn
AUTHOR
Stephen Crowley, May 30 2007
STATUS
approved