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A161542 m-th composite composite(m) is included iff composite(m) + m is prime. +0
1
4, 8, 9, 15, 20, 40, 44, 57, 63, 64, 66, 80, 81, 91, 94, 96, 114, 115, 121, 133, 136, 143, 146, 153, 154, 166, 174, 176, 177, 187, 190, 196, 200, 203, 207, 210, 225, 230, 252, 256, 268, 273, 275, 282, 302, 305, 318, 319, 322, 327, 330, 338, 341, 343, 344, 351 (list; graph; listen)
OFFSET

1,1

COMMENT

8 is composite (3) and 8+3 = 11 is prime; 9 is composite(4) and 9+4 =13 is prime

CROSSREFS

A002808

Sequence in context: A135135 A023886 A158337 this_sequence A131195 A020217 A141066

Adjacent sequences: A161539 A161540 A161541 this_sequence A161543 A161544 A161545

KEYWORD

nonn

AUTHOR

Claudio L Meller (claudiomeller(AT)gmail.com), Jun 13 2009

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


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