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A174194 10n-7 and 10n-3 are both primes. 0
1, 2, 5, 11, 17, 20, 23, 32, 47, 62, 65, 68, 83, 86, 89, 110, 122, 131, 143, 149, 167, 170, 179, 188, 200, 209, 221, 230, 248, 269, 284, 296, 317, 326, 335, 347, 362, 368, 380, 395, 401, 416, 452, 479, 482, 494, 524, 542, 551, 566, 593, 605, 674, 683, 725, 758 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..56.

CROSSREFS

Sequence in context: A091653 A088348 A156004 * A174237 A136244 A181580

Adjacent sequences:  A174191 A174192 A174193 * A174195 A174196 A174197

KEYWORD

nonn,easy

AUTHOR

Juri-Stepan Gerasimov, Mar 11 2010

EXTENSIONS

Corrected by Charles R Greathouse IV, Mar 21 2010

STATUS

approved

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Last modified November 17 03:06 EST 2019. Contains 329216 sequences. (Running on oeis4.)