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A120226 Numbers n such that a+n and a*n+1 are prime, case a=4. +0
4
1, 3, 7, 9, 13, 15, 25, 27, 37, 39, 43, 49, 57, 67, 69, 79, 93, 97, 99, 105, 127, 135, 153, 163, 169, 175, 177, 189, 193, 207, 219, 235, 253, 265, 267, 273, 277, 279, 303, 307, 309, 343, 345, 363, 405, 417, 427, 435, 475, 483, 487, 499, 517, 553, 559, 567, 573 (list; graph; listen)
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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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