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Search: id:A066148
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| A066148 |
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Primes with an even number of 0's in binary expansion. |
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+0
5
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| 3, 7, 19, 31, 43, 53, 67, 73, 79, 97, 103, 107, 109, 127, 139, 149, 163, 197, 271, 283, 307, 313, 331, 367, 379, 397, 409, 419, 421, 431, 433, 439, 443, 457, 463, 487, 491, 499, 523, 547, 571, 593, 599, 619, 643, 673, 683, 691, 739, 751, 773, 797, 811, 821
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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T. D. Noe, Table of n, a(n) for n=1..1000
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PROGRAM
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(PARI): a066148(m) = local(p, v, z); forprime(p=2, m, v=binary(p); z=0; for(j=1, matsize(v)[2], if(v[j]==0, z++)); if(z%2==0, print1(p, ", "))) a066148(850)
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CROSSREFS
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Cf. A066149, A027699, A027697.
Cf. A059010
Sequence in context: A091738 A136054 A006032 this_sequence A093932 A141173 A145472
Adjacent sequences: A066145 A066146 A066147 this_sequence A066149 A066150 A066151
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KEYWORD
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nonn,easy,base
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AUTHOR
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R. K. Guy (rkg(AT)cpsc.ucalgary.ca), Dec 13, 2001
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EXTENSIONS
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More terms from Vladeta Jovovic (vladeta(AT)eunet.rs) and Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Dec 13 2001
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