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A025051
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Numbers of the form j*k + k*i + i*j, where i,j,k >= 1.
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6
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3, 5, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 71, 72, 73, 74, 75, 76, 77, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Complement of A025052. [From Jonathan Vos Post (jvospost3(AT)gmail.com), Mar 15 2010]
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MATHEMATICA
| Take[Union[Total[Times@@@Subsets[#, {2}]]&/@Tuples[Range[25], {3}]], 80] (* From Harvey P. Dale, Aug 11 2011 *)
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CROSSREFS
| Uniquification of sequence A025050.
Cf. A025052. [From Jonathan Vos Post (jvospost3(AT)gmail.com), Mar 15 2010]
Sequence in context: A080262 A025050 A196115 * A020884 A183855 A024352
Adjacent sequences: A025048 A025049 A025050 * A025052 A025053 A025054
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KEYWORD
| nonn,nice,easy
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AUTHOR
| Clark Kimberling (ck6(AT)evansville.edu)
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