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Search: id:A109790
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A109790 Numbers n such that A083186(n) is prime. +0
3
1, 3, 5, 7, 9, 15, 19, 33, 47, 49, 51, 55, 63, 73, 97, 105, 117, 119, 131, 165, 189, 195, 223, 229, 243, 245, 253, 257, 263, 273, 277, 291, 295, 297, 329, 331, 357, 367, 371, 389, 391, 395, 397, 399, 445, 487, 497, 551, 577, 603, 605, 637, 641, 643, 683, 685 (list; graph; listen)
OFFSET

1,2

MATHEMATICA

Select[Range[2000], PrimeQ[Sum[Prime[Prime[i]], {i, 1, #}]] &] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Jun 23 2007

CROSSREFS

Cf. A006450, A083186, A126144.

Sequence in context: A073674 A084722 A083566 this_sequence A056761 A108347 A135553

Adjacent sequences: A109787 A109788 A109789 this_sequence A109791 A109792 A109793

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Jun 11 2007

EXTENSIONS

More terms from Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), Jun 23 2007

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.


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