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4, 6, 9, 12, 18, 21, 24, 33, 39, 42, 51, 54, 66, 72, 81, 84, 93, 114, 117, 123, 138, 144, 156, 171, 177, 189, 192, 207, 213, 219, 222, 231, 252, 276, 291, 306, 318, 324, 339, 348, 357, 369, 378, 396, 408, 417, 429, 441, 462, 471, 486, 507, 513, 522, 528, 546
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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COMMENTS
| "Example 3: Ordinary twins 2a +- 1 for a = 2, 3, 6, 9, 15, . . . have D = 1 and are in class I. For D = 3, the twins 2a +- 3 occur for a = 4, 5, 7, 8, 10" the latter is this sequence, from p.3 of Weber [Jonathan Vos Post, Feb 14, 2011].
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LINKS
| H. J. Weber, Exceptional Prime Number Twins, Triplets and Multiplets, Feb 15, 2011.
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CROSSREFS
| Cf. A087696, A040040, A088763, A088767, A088769.
Sequence in context: A100915 A144922 A185595 * A175250 A078782 A165897
Adjacent sequences: A088762 A088763 A088764 * A088766 A088767 A088768
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KEYWORD
| nonn
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AUTHOR
| Ray Chandler (rayjchandler(AT)sbcglobal.net), Oct 26 2003
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