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A068443 Triangular numbers which are the product of two primes. +0
12
6, 10, 15, 21, 55, 91, 253, 703, 1081, 1711, 1891, 2701, 3403, 5671, 12403, 13861, 15931, 18721, 25651, 34453, 38503, 49141, 60031, 64261, 73153, 79003, 88831, 104653, 108811, 114481, 126253, 146611, 158203, 171991, 188191, 218791, 226801 (list; graph; listen)
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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.


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