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Search: id:A089241
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A089241 n/2 - 1 is prime. +0
2
6, 8, 12, 16, 24, 28, 36, 40, 48, 60, 62, 76, 84, 88, 96, 108, 120, 124, 136, 144, 148, 160, 168, 180, 196, 202, 208, 216, 220, 228, 256, 264, 276, 280, 300, 304, 314, 328, 336, 348, 360, 364, 384, 386, 388, 396, 400, 424, 448, 456, 460, 468, 480 (list; graph; listen)
OFFSET

0,1

REFERENCES

M. Cerasoli, F. Eugeni and M. Protasi, Elementi di Matematica Discreta, Bologna 1988

Emanuele Munarini and Norma Zagaglia Salvi, Matematica Discreta,UTET, CittaStudiEdizioni, Milano 1997

CROSSREFS

a(n) = A072055(n)+1.

Sequence in context: A115166 A050992 A090259 this_sequence A027691 A146529 A062533

Adjacent sequences: A089238 A089239 A089240 this_sequence A089242 A089243 A089244

KEYWORD

easy,nonn

AUTHOR

Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Dec 22 2003

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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