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Search: id:A086120
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| A086120 |
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Natural numbers of the form p^3 - q^3, where p and q are primes. |
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+0
3
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| 19, 98, 117, 218, 316, 335, 866, 988, 1206, 1304, 1323, 1854, 1946, 2072, 2170, 2189, 2716, 3582, 4570, 4662, 4788, 4886, 4905, 5308, 5528, 6516, 6734, 6832, 6851, 7254, 9970, 10836, 11824, 12042, 12140, 12159, 12222, 17530, 19476, 22192, 23058, 24046
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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117 belongs to the sequence because it can be written as 5^3 - 2^3.
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MAPLE
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sumList[x_List, y_List] := (punchline = {}; Do[punchline = Union[punchline, x[[i]] + y], {i, Length[x]}]; punchline) posPart[x_List] := (punchline = {}; Do[If[x[[i]] > 0, punchline = Union[punchline, {x[[i]]}]], {i, Length[x]}]; punchline) posPart[sumList[Prime[Range[10]]^3, - Prime[Range[10]]^3]]
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CROSSREFS
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Cf. A086119, A086121. Also see A045636, A045699.
Sequence in context: A080187 A142170 A069593 this_sequence A129701 A044270 A044651
Adjacent sequences: A086117 A086118 A086119 this_sequence A086121 A086122 A086123
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KEYWORD
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nonn
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AUTHOR
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Hollie L. Buchanan II (hb2math(AT)hotmail.com), Jul 11 2003
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