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A288955
Integers that are the sum of two consecutive semiprimes, as well as the product of two consecutive semiprimes.
0
24, 1482, 2805, 3596, 7917, 12765, 17157, 17822, 21170, 25122, 29913, 36278, 42230, 45582, 58539, 61503, 62997, 109886, 117986, 145542, 258055, 264710, 268323, 272994, 281957, 294306, 306362, 319790, 324318, 387506, 491397, 599838, 613085, 656091, 679758, 709806, 771762, 793877
OFFSET
1,1
EXAMPLE
24 = A118717(4) = A108215(1), 1482 = A118717(223) = A108215(14).
MATHEMATICA
s = Partition[Select[Range[10^6], PrimeOmega@ # == 2 &], 2, 1]; Intersection[Map[Total, s], Map[Times @@ # &, s]] (* Michael De Vlieger, Jun 21 2017 *)
CROSSREFS
Cf. A001358. Intersection of A118717 and A108215.
Sequence in context: A260784 A099060 A035174 * A203973 A063885 A019284
KEYWORD
nonn
AUTHOR
Zak Seidov, Jun 20 2017
EXTENSIONS
More terms from Michel Marcus, Jun 27 2017
STATUS
approved