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A072745 Product of the members of pairs of primes (p, q) with p<q and (p+q)/2=2^(floor(Log2(q))+1). +0
3
15, 55, 247, 799, 943, 4087, 14359, 14863, 15943, 51847, 56887, 59911, 62287, 64807, 65311, 200143, 208783, 234919, 245503, 255583, 259543, 260119, 262063, 848767, 869647, 884551, 960367, 974047, 977287, 983551, 1003207, 1026967 (list; graph; listen)
OFFSET

1,1

FORMULA

a(n) = A072742(n) * A072743(n).

CROSSREFS

Sequence in context: A062025 A119134 A119658 this_sequence A141839 A080698 A082235

Adjacent sequences: A072742 A072743 A072744 this_sequence A072746 A072747 A072748

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 08 2002

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Last modified November 24 19:42 EST 2009. Contains 167435 sequences.


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