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A083969 Numbers n such that 2.n.3.n.5.n.7.n.11 is prime (dot means concatenation). +0
5
4, 18, 33, 42, 43, 57, 73, 76, 78, 87, 91, 93, 97, 102, 112, 114, 120, 141, 151, 177, 186, 193, 196, 219, 261, 267, 276, 280, 300, 307, 318, 322, 342, 352, 364, 366, 402, 435, 438, 445, 457, 462, 468, 484, 511, 580, 582, 633, 646, 651, 679, 706, 745, 774, 783 (list; graph; listen)
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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.


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