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A155108 Primes n with even composite(n). +0
1
2, 3, 5, 7, 11, 13, 19, 29, 31, 37, 41, 43, 47, 59, 67, 71, 79, 83, 89, 101, 103, 105, 109, 113, 127, 137, 139, 149, 151, 157, 163, 179, 181, 197, 199, 211, 233, 241, 251, 257, 269, 271, 277, 281, 293, 307, 311, 331, 337, 347, 349, 353, 359, 373, 389, 397, 401 (list; graph; listen)
OFFSET

1,1

EXAMPLE

2(composite(2)=6=even)=a(1), 3(composite(3)=8=even)=a(2), 5(composite(5)=10=even)=a(3), 7(composite(7)=14=even)=a(4), 11(c0mposite(11)=20=even)a(5), etc.

CROSSREFS

Cf. A000040, A002808.

Sequence in context: A030145 A020588 A114111 this_sequence A113188 A079153 A020616

Adjacent sequences: A155105 A155106 A155107 this_sequence A155109 A155110 A155111

KEYWORD

nonn,base

AUTHOR

Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jan 20 2009

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Last modified March 20 09:10 EDT 2010. Contains 173642 sequences.


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