|
| |
|
|
A155108
|
|
Primes n with even composite(n).
|
|
0
| |
|
|
2, 3, 5, 7, 11, 13, 19, 29, 31, 37, 41, 43, 47, 59, 67, 71, 79, 83, 89, 101, 103, 107, 109, 113, 127, 137, 139, 149, 151, 157, 163, 179, 181, 197, 199, 211, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 293, 307, 311, 331, 337, 347, 349, 353, 359, 373, 389
(list; graph; refs; listen; history; internal format)
|
|
|
|
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 * A113188 A079153 A020616
Adjacent sequences: A155105 A155106 A155107 * A155109 A155110 A155111
|
|
|
KEYWORD
| nonn,base
|
|
|
AUTHOR
| Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jan 20 2009
|
|
|
EXTENSIONS
| Corrected (105 replaced by 107, 239 and 263 inserted) by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 10 2010
|
| |
|
|
