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A115654 Semiprimes (A001358) which are the sum of distinct double factorials (A006882). +0
4
4, 6, 9, 10, 14, 15, 21, 25, 26, 49, 51, 57, 58, 62, 65, 69, 74, 77, 106, 111, 115, 118, 119, 121, 122, 123, 129, 133, 134, 155, 158, 159, 161, 166, 169, 177, 178, 386, 393, 394, 395, 398, 403, 407, 411, 413, 437, 445, 446, 447, 451, 453, 458, 489, 493, 497 (list; graph; listen)
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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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