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A089033 7n+3 is a prime. +0
8
0, 2, 4, 8, 10, 14, 22, 28, 32, 34, 38, 40, 44, 50, 52, 58, 68, 74, 80, 82, 88, 92, 94, 110, 112, 118, 122, 134, 140, 142, 148, 158, 160, 164, 170, 178, 182, 184, 188, 194, 208, 212, 220, 224, 230, 232, 238, 242, 250, 260, 268, 272, 278, 298, 304, 320, 334, 340 (list; graph; listen)
OFFSET

0,2

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

FORMULA

a(n) = A024903(n+1)-1 = A033868(n)-2 = A090614(n)*2.

CROSSREFS

A045437 gives primes, A090613 gives prime index.

Cf. A024903, A033868, A045437, A090613, A090614.

Sequence in context: A087915 A088967 A091992 this_sequence A049422 A067925 A102431

Adjacent sequences: A089030 A089031 A089032 this_sequence A089034 A089035 A089036

KEYWORD

easy,nonn

AUTHOR

Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Nov 12 2003

EXTENSIONS

Corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 12 2003

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Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.


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