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A144568 Composites with prime sum of prime factors of n and nonprime difference largest prime factor of n - smallest prime factor of n. 0
6, 12, 22, 34, 48, 54, 58, 63, 82, 88, 96, 99, 108, 117, 118, 136, 142, 147, 148, 153, 165, 176, 184, 198, 202, 207, 214, 268, 273, 274, 279, 296, 298, 316, 325, 328, 333, 345, 358, 368, 369, 376, 382, 384, 385, 388, 394, 399, 414, 423, 424, 432, 435, 454, 462, 464 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
a(1) = 6 because 2+3=5 is prime and 3-2=1 is nonprime.
a(3) = 22 because 2+11=13 is prime and 11-2=9 is nonprime.
CROSSREFS
Sequence in context: A178733 A344033 A266085 * A222001 A078472 A192754
KEYWORD
nonn,easy,less
AUTHOR
EXTENSIONS
Corrected, edited, and extended by Charles R Greathouse IV, Mar 29 2010
STATUS
approved

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Last modified March 28 13:21 EDT 2024. Contains 371254 sequences. (Running on oeis4.)