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A168469
Numbers of the form p^2 - q^2, p, q primes, p > q, with repetitions.
0
5, 16, 21, 24, 40, 45, 48, 72, 72, 96, 112, 117, 120, 120, 120, 144, 160, 165, 168, 168, 168, 192, 240, 240, 240, 240, 264, 280, 285, 288, 312, 312, 312, 336, 352, 357, 360, 360, 408, 408, 408, 432, 432, 480, 480, 480, 504, 520, 525, 528, 528, 552, 552, 552
OFFSET
1,1
MATHEMATICA
Take[Sort[Last[#]^2-First[#]^2&/@Subsets[Prime[Range[40]], {2}]], 60] (* Harvey P. Dale, Jul 22 2012 *)
CROSSREFS
Cf. A124865 Numbers of the form p^2 - q^2, p, q primes, p > q.
Sequence in context: A269969 A057281 A204920 * A124865 A090781 A191264
KEYWORD
nonn
AUTHOR
Zak Seidov, Nov 26 2009
STATUS
approved